diff --git a/.github/workflows/contracts.yml b/.github/workflows/contracts.yml
index ea5d333f..3dafdfe8 100644
--- a/.github/workflows/contracts.yml
+++ b/.github/workflows/contracts.yml
@@ -115,9 +115,6 @@ jobs:
       - name: Install dependencies
         run: yarn install --frozen-lockfile
 
-      - name: Resolve latest contracts
-        run: yarn upgrade @keep-network/keep-core@${{ github.event.inputs.environment }}
-
       - name: Configure tenderly
         env:
           TENDERLY_TOKEN: ${{ secrets.TENDERLY_TOKEN }}
@@ -186,13 +183,6 @@ jobs:
       - name: Install needed dependencies
         run: yarn install --frozen-lockfile
 
-      # If we don't remove the `keep-core` contracts from `node-modules`, the
-      # `etherscan-verify` plugins tries to verify them, which is not desired.
-      - name: Prepare for verification on Etherscan
-        run: |
-          rm -rf ./node_modules/@keep-network/keep-core
-          rm -rf ./external/npm
-
       - name: Verify contracts on Etherscan
         env:
           ETHERSCAN_API_KEY: ${{ secrets.ETHERSCAN_API_KEY }}
@@ -226,9 +216,6 @@ jobs:
       - name: Install dependencies
         run: yarn install --frozen-lockfile
 
-      - name: Resolve latest contracts
-        run: yarn upgrade @keep-network/keep-core@${{ github.event.inputs.environment }}
-
       - name: Deploy contracts
         env:
           CHAIN_API_URL: ${{ secrets.SEPOLIA_ETH_HOSTNAME_HTTP }}
diff --git a/.github/workflows/npm.yml b/.github/workflows/npm.yml
index 3c054b81..5f1857b9 100644
--- a/.github/workflows/npm.yml
+++ b/.github/workflows/npm.yml
@@ -27,10 +27,8 @@ jobs:
           registry-url: "https://registry.npmjs.org"
           cache: "yarn"
 
-      - name: Resolve latest contracts
-        run: |
-          yarn upgrade --exact \
-            @keep-network/keep-core
+      - name: Install needed dependencies
+        run: yarn install --frozen-lockfile
 
       # Deploy contracts to a local network to generate deployment artifacts that
       # are required by dashboard compilation.
diff --git a/contracts/governance/StakerGovernorVotes.sol b/contracts/governance/StakerGovernorVotes.sol
index c55c1413..a97228a9 100644
--- a/contracts/governance/StakerGovernorVotes.sol
+++ b/contracts/governance/StakerGovernorVotes.sol
@@ -19,8 +19,7 @@ import "./GovernorParameters.sol";
 import "./IVotesHistory.sol";
 
 /// @title StakerGovernorVotes
-/// @notice Staker DAO voting power extraction from staked T positions,
-//          including legacy stakes (NU/KEEP).
+/// @notice Staker DAO voting power extraction from staked T positions.
 abstract contract StakerGovernorVotes is GovernorParameters {
     IVotesHistory public immutable staking;
 
@@ -29,8 +28,7 @@ abstract contract StakerGovernorVotes is GovernorParameters {
     }
 
     /// @notice Read the voting weight from the snapshot mechanism in the T
-    ///         staking contracts. Note that this also tracks legacy stakes
-    ///         (NU/KEEP).
+    ///         staking contracts.
     /// @param account Delegate account with T staking voting power
     /// @param blockNumber The block number to get the vote balance at
     /// @dev See {IGovernor-getVotes}
diff --git a/contracts/governance/TokenholderGovernorVotes.sol b/contracts/governance/TokenholderGovernorVotes.sol
index 69a17ba8..79be03e6 100644
--- a/contracts/governance/TokenholderGovernorVotes.sol
+++ b/contracts/governance/TokenholderGovernorVotes.sol
@@ -20,7 +20,7 @@ import "./IVotesHistory.sol";
 
 /// @title TokenholderGovernorVotes
 /// @notice Tokenholder DAO voting power extraction from both liquid and staked
-///         T token positions, including legacy stakes (NU/KEEP).
+///         T token positions.
 abstract contract TokenholderGovernorVotes is GovernorParameters {
     IVotesHistory public immutable token;
     IVotesHistory public immutable staking;
@@ -35,10 +35,6 @@ abstract contract TokenholderGovernorVotes is GovernorParameters {
     ///         two voting power sources:
     ///          - Liquid T, tracked by the T token contract
     ///          - Stakes in the T network, tracked  by the T staking contract.
-    ///            Note that this also tracks legacy stakes (NU/KEEP); legacy
-    ///            stakes count for tokenholders' voting power, but not for the
-    ///            total voting power of the Tokenholder DAO
-    ///            (see {_getPastTotalSupply}).
     /// @param account Tokenholder account in the T network
     /// @param blockNumber The block number to get the vote balance at
     /// @dev See {IGovernor-getVotes}
@@ -57,10 +53,7 @@ abstract contract TokenholderGovernorVotes is GovernorParameters {
     /// @notice Compute the total voting power for Tokenholder DAO. Note how it
     ///         only uses the token total supply as source, as native T tokens
     ///         that are staked continue existing, but as deposits in the
-    ///         staking contract. However, legacy stakes can't contribute to the
-    ///         total voting power as they're already implicitly counted as part
-    ///         of Vending Machines' liquid balance; hence, we only need to read
-    ///         total voting power from the token.
+    ///         staking contract.
     /// @param blockNumber The block number to get the vote power at
     function _getPastTotalSupply(uint256 blockNumber)
         internal
diff --git a/contracts/staking/IStaking.sol b/contracts/staking/IStaking.sol
index fa5d60da..e15f1126 100644
--- a/contracts/staking/IStaking.sol
+++ b/contracts/staking/IStaking.sol
@@ -27,12 +27,6 @@ pragma solidity ^0.8.9;
 ///         delegation optimizes the network throughput without compromising the
 ///         security of the owners’ stake.
 interface IStaking {
-    enum StakeType {
-        NU,
-        KEEP,
-        T
-    }
-
     //
     //
     // Delegating a stake
@@ -174,41 +168,13 @@ interface IStaking {
     //
     //
 
-    /// @notice Reduces the liquid T stake amount by the provided amount and
+    /// @notice Reduces the T stake amount by the provided amount and
     ///         withdraws T to the owner. Reverts if there is at least one
-    ///         authorization higher than the sum of the legacy stake and
-    ///         remaining liquid T stake or if the unstake amount is higher than
-    ///         the liquid T stake amount. Can be called only by the delegation
-    ///         owner or the staking provider.
-    function unstakeT(address stakingProvider, uint96 amount) external;
-
-    /// @notice Sets the legacy KEEP staking contract active stake amount cached
-    ///         in T staking contract to 0. Reverts if the amount of liquid T
-    ///         staked in T staking contract is lower than the highest
-    ///         application authorization. This function allows to unstake from
-    ///         KEEP staking contract and still being able to operate in T
-    ///         network and earning rewards based on the liquid T staked. Can be
-    ///         called only by the delegation owner or the staking provider.
-    function unstakeKeep(address stakingProvider) external;
-
-    /// @notice Sets to 0 the amount of T that is cached from the legacy
-    ///         NU staking contract. Reverts if there is at least one
-    ///         authorization higher than the sum of remaining legacy NU stake
-    ///         and native T stake for that staking provider or if the unstaked
-    ///         amount is higher than the cached legacy stake amount. If succeeded,
-    ///         the legacy NU stake can be partially or fully undelegated on
-    ///         the legacy NU staking contract. This function allows to unstake
-    ///         from NU staking contract while still being able to operate in
-    ///         T network and earning rewards based on the native T staked.
-    ///         Can be called only by the stake owner or the staking provider.
-    function unstakeNu(address stakingProvider) external;
-
-    /// @notice Sets cached legacy stake amount to 0, sets the liquid T stake
-    ///         amount to 0 and withdraws all liquid T from the stake to the
-    ///         owner. Reverts if there is at least one non-zero authorization.
+    ///         authorization higher than the remaining T stake or
+    ///         if the unstake amount is higher than the T stake amount.
     ///         Can be called only by the delegation owner or the staking
     ///         provider.
-    function unstakeAll(address stakingProvider) external;
+    function unstakeT(address stakingProvider, uint96 amount) external;
 
     //
     //
@@ -265,17 +231,11 @@ interface IStaking {
         view
         returns (uint96);
 
-    /// @notice Returns staked amount of T, Keep and Nu for the specified
-    ///         staking provider.
-    /// @dev    All values are in T denomination
-    function stakes(address stakingProvider)
+    /// @notice Returns staked amount of T for the specified staking provider.
+    function stakeAmount(address stakingProvider)
         external
         view
-        returns (
-            uint96 tStake,
-            uint96 keepInTStake,
-            uint96 nuInTStake
-        );
+        returns (uint96);
 
     /// @notice Returns start staking timestamp.
     /// @dev    This value is set at most once.
@@ -290,9 +250,6 @@ interface IStaking {
         view
         returns (bool);
 
-    /// @notice Returns staked amount of NU for the specified staking provider.
-    function stakedNu(address stakingProvider) external view returns (uint256);
-
     /// @notice Gets the stake owner, the beneficiary and the authorizer
     ///         for the specified staking provider address.
     /// @return owner Stake owner address.
@@ -313,23 +270,8 @@ interface IStaking {
     /// @notice Returns length of slashing queue
     function getSlashingQueueLength() external view returns (uint256);
 
-    /// @notice Returns minimum possible stake for T, KEEP or NU in T
-    ///         denomination.
-    /// @dev For example, suppose the given staking provider has 10 T, 20 T worth
-    ///      of KEEP, and 30 T worth of NU all staked, and the maximum
-    ///      application authorization is 40 T, then `getMinStaked` for
-    ///      that staking provider returns:
-    ///          * 0 T if KEEP stake type specified i.e.
-    ///            min = 40 T max - (10 T) = 30 T
-    ///          * 10 T if NU stake type specified i.e.
-    ///            min = 40 T max - (10 T) = 30 T
-    ///          * 0 T if T stake type specified i.e.
-    ///            min = 40 T max = 40 T
-    ///      In other words, the minimum stake amount for the specified
-    ///      stake type is the minimum amount of stake of the given type
-    ///      needed to satisfy the maximum application authorization given
-    ///      the staked amounts of the T stake types for that staking provider.
-    function getMinStaked(address stakingProvider, StakeType stakeTypes)
+    /// @notice Returns the maximum application authorization
+    function getMaxAuthorization(address stakingProvider)
         external
         view
         returns (uint96);
diff --git a/contracts/staking/TokenStaking.sol b/contracts/staking/TokenStaking.sol
index 29f50cd3..8ab19625 100644
--- a/contracts/staking/TokenStaking.sol
+++ b/contracts/staking/TokenStaking.sol
@@ -28,12 +28,8 @@ import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
 import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
 
 /// @notice TokenStaking is the main staking contract of the Threshold Network.
-///         Apart from the basic usage of enabling T stakes, it also acts as a
-///         sort of "meta-staking" contract, accepting existing legacy NU/KEEP
-///         stakes. Additionally, it serves as application manager for the apps
-///         that run on the Threshold Network. Note that legacy NU/KEEP staking
-///         contracts see TokenStaking as an application (e.g., slashing is
-///         requested by TokenStaking and performed by the legacy contracts).
+///         It serves as application manager for the apps that run on
+///         the Threshold Network.
 /// @dev TokenStaking is upgradeable, using OpenZeppelin's Upgradeability
 ///      framework. As such, it is required to satisfy OZ's guidelines, like
 ///      restrictions on constructors, immutable variables, base contracts and
@@ -43,6 +39,13 @@ contract TokenStaking is Initializable, IStaking, Checkpoints {
     using PercentUtils for uint256;
     using SafeCastUpgradeable for uint256;
 
+    // enum is used for Staked event to have backward compatibility
+    enum StakeType {
+        NU,
+        KEEP,
+        T
+    }
+
     enum ApplicationStatus {
         NOT_APPROVED,
         APPROVED,
@@ -86,9 +89,6 @@ contract TokenStaking is Initializable, IStaking, Checkpoints {
     /// @custom:oz-upgrades-unsafe-allow state-variable-immutable
     T internal immutable token;
 
-    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable
-    uint256 internal immutable nucypherRatio;
-
     address public governance;
     uint96 public minTStakeAmount;
     uint256 public authorizationCeiling;
@@ -215,14 +215,11 @@ contract TokenStaking is Initializable, IStaking, Checkpoints {
     }
 
     /// @param _token Address of T token contract
-    /// @param _nucypherVendingMachine Address of NuCypher vending machine
     /// @custom:oz-upgrades-unsafe-allow constructor
-    constructor(T _token, VendingMachine _nucypherVendingMachine) {
+    constructor(T _token) {
         // calls to check contracts are working
         require(_token.totalSupply() > 0, "Wrong input parameters");
         token = _token;
-
-        nucypherRatio = _nucypherVendingMachine.ratio();
     }
 
     function initialize() external initializer {
@@ -653,13 +650,12 @@ contract TokenStaking is Initializable, IStaking, Checkpoints {
     //
     //
 
-    /// @notice Reduces the liquid T stake amount by the provided amount and
+    /// @notice Reduces the T stake amount by the provided amount and
     ///         withdraws T to the owner. Reverts if there is at least one
-    ///         authorization higher than the sum of the legacy stake and
-    ///         remaining liquid T stake or if the unstake amount is higher than
-    ///         the liquid T stake amount. Can be called only by the owner or
-    ///         the staking provider. Can only be called when 24h passed since
-    ///         the stake has been delegated.
+    ///         authorization higher than the remaining T stake or
+    ///         if the unstake amount is higher than the T stake amount.
+    ///         Can be called only by the delegation owner or the staking
+    ///         provider.
     function unstakeT(address stakingProvider, uint96 amount)
         external
         override
@@ -670,7 +666,7 @@ contract TokenStaking is Initializable, IStaking, Checkpoints {
         ];
         require(
             amount > 0 &&
-                amount + getMinStaked(stakingProvider, StakeType.T) <=
+                amount + getMaxAuthorization(stakingProvider) <=
                 stakingProviderStruct.tStake,
             "Too much to unstake"
         );
@@ -687,121 +683,6 @@ contract TokenStaking is Initializable, IStaking, Checkpoints {
         token.safeTransfer(stakingProviderStruct.owner, amount);
     }
 
-    /// @notice Sets the legacy KEEP staking contract active stake amount cached
-    ///         in T staking contract to 0. Reverts if the amount of liquid T
-    ///         staked in T staking contract is lower than the highest
-    ///         application authorization. This function allows to unstake from
-    ///         KEEP staking contract and still being able to operate in T
-    ///         network and earning rewards based on the liquid T staked. Can be
-    ///         called only by the delegation owner or the staking provider.
-    ///         Can only be called when 24h passed since the stake has been
-    ///         delegated.
-    /// @dev    This function (or `unstakeAll`) must be called before
-    ///         `undelegate`/`undelegateAt` in Keep staking contract. Otherwise
-    ///         provider can be slashed by `notifyKeepStakeDiscrepancy` method.
-    function unstakeKeep(address stakingProvider)
-        external
-        override
-        onlyOwnerOrStakingProvider(stakingProvider)
-    {
-        StakingProviderInfo storage stakingProviderStruct = stakingProviders[
-            stakingProvider
-        ];
-        uint96 keepInTStake = stakingProviderStruct.keepInTStake;
-        require(keepInTStake != 0, "Nothing to unstake");
-        require(
-            getMinStaked(stakingProvider, StakeType.KEEP) == 0,
-            "Keep stake still authorized"
-        );
-
-        emit Unstaked(stakingProvider, keepInTStake);
-        stakingProviderStruct.keepInTStake = 0;
-        decreaseStakeCheckpoint(stakingProvider, keepInTStake);
-    }
-
-    /// @notice Sets to 0 the amount of T that is cached from the legacy
-    ///         NU staking contract. Reverts if there is at least one
-    ///         authorization higher than the sum of remaining legacy NU stake
-    ///         and native T stake for that staking provider or if the unstaked
-    ///         amount is higher than the cached legacy stake amount. If succeeded,
-    ///         the legacy NU stake can be partially or fully undelegated on
-    ///         the legacy NU staking contract. This function allows to unstake
-    ///         from NU staking contract while still being able to operate in
-    ///         T network and earning rewards based on the native T staked.
-    ///         Can be called only by the stake owner or the staking provider.
-    /// @dev    This function (or `unstakeAll`) must be called before `withdraw`
-    ///         in NuCypher staking contract. Otherwise NU tokens can't be
-    ///         unlocked.
-    /// @param stakingProvider Staking provider address
-    function unstakeNu(address stakingProvider)
-        external
-        override
-        onlyOwnerOrStakingProvider(stakingProvider)
-    {
-        StakingProviderInfo storage stakingProviderStruct = stakingProviders[
-            stakingProvider
-        ];
-        uint96 nuInTStake = stakingProviderStruct.nuInTStake;
-        require(nuInTStake != 0, "Nothing to unstake");
-        require(
-            getMinStaked(stakingProvider, StakeType.NU) == 0,
-            "NU stake still authorized"
-        );
-
-        stakingProviderStruct.nuInTStake = 0;
-        decreaseStakeCheckpoint(stakingProvider, nuInTStake);
-        emit Unstaked(stakingProvider, nuInTStake);
-    }
-
-    /// @notice Sets cached legacy stake amount to 0, sets the liquid T stake
-    ///         amount to 0 and withdraws all liquid T from the stake to the
-    ///         owner. Reverts if there is at least one non-zero authorization.
-    ///         Can be called only by the delegation owner or the staking
-    ///         provider. Can only be called when 24h passed since the stake
-    ///         has been delegated.
-    function unstakeAll(address stakingProvider)
-        external
-        override
-        onlyOwnerOrStakingProvider(stakingProvider)
-    {
-        StakingProviderInfo storage stakingProviderStruct = stakingProviders[
-            stakingProvider
-        ];
-        require(
-            stakingProviderStruct.authorizedApplications.length == 0,
-            "Stake still authorized"
-        );
-        require(
-            stakingProviderStruct.startStakingTimestamp + MIN_STAKE_TIME <=
-                /* solhint-disable-next-line not-rely-on-time */
-                block.timestamp,
-            "Can't unstake earlier than 24h"
-        );
-
-        uint96 unstaked = stakingProviderStruct.tStake +
-            stakingProviderStruct.keepInTStake +
-            stakingProviderStruct.nuInTStake;
-        emit Unstaked(stakingProvider, unstaked);
-        uint96 amount = stakingProviderStruct.tStake;
-        stakingProviderStruct.tStake = 0;
-        stakingProviderStruct.keepInTStake = 0;
-        stakingProviderStruct.nuInTStake = 0;
-        decreaseStakeCheckpoint(stakingProvider, unstaked);
-
-        if (amount > 0) {
-            token.safeTransfer(stakingProviderStruct.owner, amount);
-        }
-    }
-
-    /// @notice Involuntary decrease authorization for all application up to T
-    ///         stake amount for all staking providers in the list.
-    ///         Sets cached legacy stake amount to 0. Can be called by anyone
-    function forceUnstakeLegacy(address[] memory _stakingProviders) external {
-        for (uint256 i = 0; i < _stakingProviders.length; i++) {
-            forceUnstakeLegacy(_stakingProviders[i]);
-        }
-    }
-
     //
     //
     // Keeping information in sync
@@ -941,25 +822,30 @@ contract TokenStaking is Initializable, IStaking, Checkpoints {
                 .authorized;
     }
 
-    /// @notice Returns staked amount of T, Keep and Nu for the specified
-    ///         staking provider.
-    /// @dev    All values are in T denomination
+    /// @notice Returns staked amount of T for the specified staking provider.
+    /// @dev    Method is deprecated. Use `stakeAmount` instead
     function stakes(address stakingProvider)
         external
         view
-        override
         returns (
             uint96 tStake,
             uint96 keepInTStake,
             uint96 nuInTStake
         )
     {
-        StakingProviderInfo storage stakingProviderStruct = stakingProviders[
-            stakingProvider
-        ];
-        tStake = stakingProviderStruct.tStake;
-        keepInTStake = stakingProviderStruct.keepInTStake;
-        nuInTStake = stakingProviderStruct.nuInTStake;
+        tStake = stakingProviders[stakingProvider].tStake;
+        keepInTStake = 0;
+        nuInTStake = 0;
+    }
+
+    /// @notice Returns staked amount of T for the specified staking provider.
+    function stakeAmount(address stakingProvider)
+        external
+        view
+        override
+        returns (uint96)
+    {
+        return stakingProviders[stakingProvider].tStake;
     }
 
     /// @notice Returns start staking timestamp.
@@ -983,19 +869,6 @@ contract TokenStaking is Initializable, IStaking, Checkpoints {
         return stakingProviders[stakingProvider].autoIncrease;
     }
 
-    /// @notice Returns staked amount of NU for the specified staking provider.
-    function stakedNu(address stakingProvider)
-        external
-        view
-        override
-        returns (uint256 nuAmount)
-    {
-        (nuAmount, ) = convertFromT(
-            stakingProviders[stakingProvider].nuInTStake,
-            nucypherRatio
-        );
-    }
-
     /// @notice Gets the stake owner, the beneficiary and the authorizer
     ///         for the specified staking provider address.
     /// @return owner Stake owner address.
@@ -1078,88 +951,8 @@ contract TokenStaking is Initializable, IStaking, Checkpoints {
         );
     }
 
-    /// @notice Involuntary decrease authorization for all application up to T
-    ///         stake amount. Sets cached legacy stake amount to 0.
-    ///         Can be called by anyone
-    function forceUnstakeLegacy(address stakingProvider) public {
-        StakingProviderInfo storage stakingProviderStruct = stakingProviders[
-            stakingProvider
-        ];
-        uint96 legacyStake = stakingProviderStruct.keepInTStake +
-            stakingProviderStruct.nuInTStake;
-        require(legacyStake > 0, "No legacy stake");
-
-        // similar to authorizationDecrease method
-        uint256 applicationsToDelete = 0;
-        for (
-            uint256 i = 0;
-            i < stakingProviderStruct.authorizedApplications.length;
-            i++
-        ) {
-            address authorizedApplication = stakingProviderStruct
-                .authorizedApplications[i];
-            AppAuthorization storage authorization = stakingProviderStruct
-                .authorizations[authorizedApplication];
-            uint96 fromAmount = authorization.authorized;
-
-            if (fromAmount <= stakingProviderStruct.tStake) {
-                continue;
-            }
-            authorization.authorized = stakingProviderStruct.tStake;
-
-            bool successful = true;
-            //slither-disable-next-line calls-loop
-            try
-                IApplication(authorizedApplication)
-                    .involuntaryAuthorizationDecrease{
-                    gas: GAS_LIMIT_AUTHORIZATION_DECREASE
-                }(stakingProvider, fromAmount, authorization.authorized)
-            {} catch {
-                successful = false;
-            }
-            if (authorization.deauthorizing > authorization.authorized) {
-                authorization.deauthorizing = authorization.authorized;
-            }
-            emit AuthorizationInvoluntaryDecreased(
-                stakingProvider,
-                authorizedApplication,
-                fromAmount,
-                authorization.authorized,
-                successful
-            );
-            if (authorization.authorized == 0) {
-                applicationsToDelete++;
-            }
-        }
-        if (applicationsToDelete > 0) {
-            cleanAuthorizedApplications(
-                stakingProviderStruct,
-                applicationsToDelete
-            );
-        }
-
-        emit Unstaked(stakingProvider, legacyStake);
-        stakingProviderStruct.keepInTStake = 0;
-        stakingProviderStruct.nuInTStake = 0;
-        decreaseStakeCheckpoint(stakingProvider, legacyStake);
-    }
-
-    /// @notice Returns minimum possible stake for T, KEEP or NU in T denomination
-    /// @dev For example, suppose the given staking provider has 10 T, 20 T worth
-    ///      of KEEP, and 30 T worth of NU all staked, and the maximum
-    ///      application authorization is 40 T, then `getMinStaked` for
-    ///      that staking provider returns:
-    ///          * 0 T if KEEP stake type specified i.e.
-    ///            min = 40 T max - (10 T) = 30 T
-    ///          * 10 T if NU stake type specified i.e.
-    ///            min = 40 T max - (10 T) = 30 T
-    ///          * 0 T if T stake type specified i.e.
-    ///            min = 40 T max = 40 T
-    ///      In other words, the minimum stake amount for the specified
-    ///      stake type is the minimum amount of stake of the given type
-    ///      needed to satisfy the maximum application authorization given
-    ///      the staked amounts of the T stake types for that staking provider.
-    function getMinStaked(address stakingProvider, StakeType stakeTypes)
+    /// @notice Returns the maximum application authorization
+    function getMaxAuthorization(address stakingProvider)
         public
         view
         override
@@ -1182,16 +975,6 @@ contract TokenStaking is Initializable, IStaking, Checkpoints {
                 stakingProviderStruct.authorizations[application].authorized
             );
         }
-
-        if (maxAuthorization == 0) {
-            return 0;
-        }
-        if (stakeTypes != StakeType.T) {
-            maxAuthorization -= MathUpgradeable.min(
-                maxAuthorization,
-                stakingProviderStruct.tStake
-            );
-        }
         return maxAuthorization.toUint96();
     }
 
@@ -1231,9 +1014,7 @@ contract TokenStaking is Initializable, IStaking, Checkpoints {
         StakingProviderInfo storage stakingProviderStruct = stakingProviders[
             stakingProvider
         ];
-        uint96 stakingProviderBalance = stakingProviderStruct.tStake +
-            stakingProviderStruct.keepInTStake +
-            stakingProviderStruct.nuInTStake;
+        uint96 stakingProviderBalance = stakingProviderStruct.tStake;
         address oldDelegatee = delegates(stakingProvider);
         _delegates[stakingProvider] = delegatee;
         emit DelegateChanged(stakingProvider, oldDelegatee, delegatee);
@@ -1305,9 +1086,7 @@ contract TokenStaking is Initializable, IStaking, Checkpoints {
             slashing.stakingProvider
         ];
         uint96 tAmountToSlash = slashing.amount;
-        uint96 oldStake = stakingProviderStruct.tStake +
-            stakingProviderStruct.keepInTStake +
-            stakingProviderStruct.nuInTStake;
+        uint96 oldStake = stakingProviderStruct.tStake;
         // slash T
         tAmountToBurn = MathUpgradeable
             .min(tAmountToSlash, stakingProviderStruct.tStake)
@@ -1322,21 +1101,18 @@ contract TokenStaking is Initializable, IStaking, Checkpoints {
             stakingProviderStruct,
             slashedAmount
         );
-        uint96 newStake = stakingProviderStruct.tStake +
-            stakingProviderStruct.keepInTStake +
-            stakingProviderStruct.nuInTStake;
+        uint96 newStake = stakingProviderStruct.tStake;
         decreaseStakeCheckpoint(slashing.stakingProvider, oldStake - newStake);
     }
 
     /// @notice Synchronize authorizations (if needed) after slashing stake
+    //slither-disable-next-line dead-code
     function authorizationDecrease(
         address stakingProvider,
         StakingProviderInfo storage stakingProviderStruct,
         uint96 slashedAmount
     ) internal {
-        uint96 totalStake = stakingProviderStruct.tStake +
-            stakingProviderStruct.nuInTStake +
-            stakingProviderStruct.keepInTStake;
+        uint96 totalStake = stakingProviderStruct.tStake;
         uint256 applicationsToDelete = 0;
         for (
             uint256 i = 0;
@@ -1479,18 +1255,4 @@ contract TokenStaking is Initializable, IStaking, Checkpoints {
         governance = newGuvnor;
         emit GovernanceTransferred(oldGuvnor, newGuvnor);
     }
-
-    /// @notice Returns the amount of legacy tokens that's obtained from
-    ///         `tAmount` T tokens for the given `ratio`, and the T remainder
-    ///         that can't be converted.
-    function convertFromT(uint96 tAmount, uint256 ratio)
-        internal
-        pure
-        returns (uint256 amount, uint96 tRemainder)
-    {
-        //slither-disable-next-line weak-prng
-        tRemainder = (tAmount % ratio).toUint96();
-        uint256 convertibleAmount = tAmount - tRemainder;
-        amount = (convertibleAmount * CONVERSION_DIVISOR) / ratio;
-    }
 }
diff --git a/contracts/test/TokenStakingTestSet.sol b/contracts/test/TokenStakingTestSet.sol
index abdadc2c..eb54e0b9 100644
--- a/contracts/test/TokenStakingTestSet.sol
+++ b/contracts/test/TokenStakingTestSet.sol
@@ -149,9 +149,7 @@ contract ManagedGrantMock {
 }
 
 contract ExtendedTokenStaking is TokenStaking {
-    constructor(T _token, VendingMachine _nucypherVendingMachine)
-        TokenStaking(_token, _nucypherVendingMachine)
-    {}
+    constructor(T _token) TokenStaking(_token) {}
 
     function cleanAuthorizedApplications(
         address stakingProvider,
@@ -192,72 +190,3 @@ contract ExtendedTokenStaking is TokenStaking {
         return stakingProviders[stakingProvider].authorizedApplications;
     }
 }
-
-contract LegacyTokenStaking is TokenStaking {
-    /// @custom:oz-upgrades-unsafe-allow constructor
-    constructor(T _token, VendingMachine _nucypherVendingMachine)
-        TokenStaking(_token, _nucypherVendingMachine)
-    {}
-
-    function setLegacyStakingProviderDefault(address stakingProvider) external {
-        setLegacyStakingProvider(
-            stakingProvider,
-            stakingProvider,
-            payable(stakingProvider),
-            stakingProvider
-        );
-    }
-
-    function addLegacyStake(
-        address stakingProvider,
-        uint96 keepInTStake,
-        uint96 nuInTStake
-    ) external {
-        StakingProviderInfo storage stakingProviderStruct = stakingProviders[
-            stakingProvider
-        ];
-        stakingProviderStruct.keepInTStake += keepInTStake;
-        stakingProviderStruct.nuInTStake += nuInTStake;
-        if (stakingProviderStruct.startStakingTimestamp == 0) {
-            /* solhint-disable-next-line not-rely-on-time */
-            stakingProviderStruct.startStakingTimestamp = block.timestamp;
-        }
-        increaseStakeCheckpoint(stakingProvider, keepInTStake + nuInTStake);
-    }
-
-    function forceIncreaseAuthorization(
-        address stakingProvider,
-        address application,
-        uint96 amount
-    ) external {
-        StakingProviderInfo storage stakingProviderStruct = stakingProviders[
-            stakingProvider
-        ];
-        AppAuthorization storage authorization = stakingProviderStruct
-            .authorizations[application];
-        uint96 fromAmount = authorization.authorized;
-        if (fromAmount == 0) {
-            stakingProviderStruct.authorizedApplications.push(application);
-        }
-        authorization.authorized += amount;
-        IApplication(application).authorizationIncreased(
-            stakingProvider,
-            fromAmount,
-            authorization.authorized
-        );
-    }
-
-    function setLegacyStakingProvider(
-        address stakingProvider,
-        address owner,
-        address payable beneficiary,
-        address authorizer
-    ) public {
-        StakingProviderInfo storage stakingProviderStruct = stakingProviders[
-            stakingProvider
-        ];
-        stakingProviderStruct.owner = owner;
-        stakingProviderStruct.authorizer = authorizer;
-        stakingProviderStruct.beneficiary = beneficiary;
-    }
-}
diff --git a/deploy/07_deploy_token_staking.ts b/deploy/07_deploy_token_staking.ts
index 1f96e7ae..67f6ccf3 100644
--- a/deploy/07_deploy_token_staking.ts
+++ b/deploy/07_deploy_token_staking.ts
@@ -9,12 +9,8 @@ const func: DeployFunction = async function (hre: HardhatRuntimeEnvironment) {
   const { deployer } = await getNamedAccounts()
 
   const T = await deployments.get("T")
-  const VendingMachineNuCypher = await deployments.get("VendingMachineNuCypher")
 
-  const tokenStakingConstructorArgs = [
-    T.address,
-    VendingMachineNuCypher.address,
-  ]
+  const tokenStakingConstructorArgs = [T.address]
   const tokenStakingInitializerArgs = []
 
   // TODO: Consider upgradable deployment also for sepolia.
diff --git a/docs/rfc-1-staking-contract.adoc b/docs/rfc-1-staking-contract.adoc
index 6a244fa9..644ef31b 100644
--- a/docs/rfc-1-staking-contract.adoc
+++ b/docs/rfc-1-staking-contract.adoc
@@ -296,37 +296,10 @@ will be added to already authorized applications.
 
 ==== `unstakeT(address stakingProvider, uint96 amount) external onlyOwnerOrStakingProvider(stakingProvider)`
 
-Reduces the liquid T stake amount by `amount` and withdraws `amount` of T 
-to the owner. Reverts if there is at least one authorization higher than the sum
-of a legacy stake and remaining liquid T stake or if the `amount` is higher than
-the liquid T stake amount. Can be called only by the owner or the staking provider.
-
-==== `unstakeKeep(address stakingProvider) external onlyOwnerOrStakingProvider(stakingProvider)`
-
-Sets the legacy staking contract active stake amount cached in T staking
-contract to 0. Reverts if the amount of liquid T staked in T staking contract is
-lower than the highest application authorization. This function allows to
-unstake from Keep staking contract and sill being able to operate in T network
-and earning rewards based on the liquid T staked. Can be called only by the
-delegation owner or the staking provider.
-
-==== `unstakeNu(address stakingProvider, uint96 amount) external onlyOwnerOrStakingProvider(stakingProvider)`
-
-Sets to 0 the amount of T that is cached from the legacy NU staking contract. 
-Reverts if there is at least one authorization higher than the sum of remaining 
-legacy NU stake and native T stake for that staking provider or if the unstaked
-amount is higher than the cached legacy stake amount. If succeeded, the legacy 
-NU stake can be partially or fully undelegated on the legacy NU staking contract. 
-This function allows to unstake from NU staking contract while still being able 
-to operate in T network and earning rewards based on the native T staked.
-Can be called only by the stake owner or the staking provider.
-
-==== `unstakeAll(address stakingProvider) external onlyOwnerOrStakingProvider(stakingProvider)`
-
-Sets cached legacy stake amount to 0, sets the liquid T stake amount to 0 and
-withdraws all liquid T from the stake to the owner. Reverts if there is at least one
-non-zero authorization. Can be called only by the delegation owner or the
-staking provider.
+Reduces the T stake amount by `amount` and withdraws `amount` of T 
+to the owner. Reverts if there is at least one authorization higher than the 
+remaining T stake or if the `amount` is higher than the T stake amount. 
+Can be called only by the owner or the staking provider.
 
 === Keeping information in sync
 
@@ -371,14 +344,17 @@ Returns the authorized stake amount of the staking provider for the application.
 
 ==== `stakes(address stakingProvider) external view returns (uint96 tStake, uint96 keepInTStake, uint96 nuInTStake)`
 
-Returns staked amount of T, Keep and Nu for the specified staking provider. All values
-are in T denomination.
+Returns staked amount of T for the specified staking provider. 
+Method is deprecated. Use `stakeAmount` instead.
+
+==== `stakeAmount(address stakingProvider) external view returns (uint96)`
+
+Returns staked amount of T for the specified staking provider.
 
 ==== `getStartStakingTimestamp(address stakingProvider) external view returns (uint256)`
 
-Returns start staking timestamp for T/NU stake. This value is set at most once, 
-and only when a stake is created with T or NU tokens. If a stake is created 
-from a legacy KEEP stake, this value will remain as zero.
+Returns start staking timestamp for T stake. This value is set at most once, 
+and only when a stake is created with.
 
 
 ==== `getAutoIncreaseFlag(address stakingProvider) external view returns (bool)`
@@ -386,10 +362,6 @@ from a legacy KEEP stake, this value will remain as zero.
 Returns auto-increase flag. If flag is true then any topped up amount will be added to
 existing authorizations.
 
-==== `stakedNu(address stakingProvider) external view returns (uint256)`
-
-Returns staked amount of NU for the specified staking provider
-
 ==== `rolesOf(address stakingProvider) external view returns (address owner, address payable beneficiary, address authorizer)`
 
 Gets the stake owner, the beneficiary and the authorizer for the specified 
@@ -403,21 +375,9 @@ Returns length of application array
 
 Returns length of slashing queue
 
-==== `getMinStaked(address stakingProvider, StakeType stakeTypes) external view returns (uint96)`
-
-Returns minimum possible stake for T, KEEP or NU (stake type) in T denomination.
-For example, suppose the given staking provider has 10 T, 20 T worth of KEEP,
-and 30 T worth of NU all staked, and the maximum application authorization is
-40 T, then `getMinStaked` for that staking provider returns:
-
-* 0 T if KEEP stake type specified i.e. min = 40 T max - (10 T) = 30 T
-* 10 T if NU stake type specified i.e. min = 40 T max - (10 T) = 30 T
-* 0 T if T stake type specified i.e. min = 40 T max = 40 T
+==== `getMaxAuthorization(address stakingProvider) external view returns (uint96)`
 
-In other words, the minimum stake amount for
-the specified stake type is the minimum amount of stake of the given type needed
-to satisfy the maximum application authorization given the staked amounts of the
-T stake type for that staking provider.
+Returns the maximum application authorization.
 
 ==== `getAvailableToAuthorize(address stakingProvider, address application) external view returns (uint96)`
 
diff --git a/external/sepolia/KeepRegistry.json b/external/sepolia/KeepRegistry.json
deleted file mode 100644
index 747931b0..00000000
--- a/external/sepolia/KeepRegistry.json
+++ /dev/null
@@ -1,11685 +0,0 @@
-{
-  "contractName": "KeepRegistry",
-  "abi": [
-    {
-      "inputs": [],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "constructor"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": false,
-          "internalType": "address",
-          "name": "defaultPanicButton",
-          "type": "address"
-        }
-      ],
-      "name": "DefaultPanicButtonUpdated",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": false,
-          "internalType": "address",
-          "name": "governance",
-          "type": "address"
-        }
-      ],
-      "name": "GovernanceUpdated",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": false,
-          "internalType": "address",
-          "name": "operatorContract",
-          "type": "address"
-        }
-      ],
-      "name": "OperatorContractApproved",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": false,
-          "internalType": "address",
-          "name": "operatorContract",
-          "type": "address"
-        }
-      ],
-      "name": "OperatorContractDisabled",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": false,
-          "internalType": "address",
-          "name": "operatorContract",
-          "type": "address"
-        }
-      ],
-      "name": "OperatorContractPanicButtonDisabled",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": false,
-          "internalType": "address",
-          "name": "operatorContract",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "internalType": "address",
-          "name": "panicButton",
-          "type": "address"
-        }
-      ],
-      "name": "OperatorContractPanicButtonUpdated",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": false,
-          "internalType": "address",
-          "name": "serviceContract",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "internalType": "address",
-          "name": "upgrader",
-          "type": "address"
-        }
-      ],
-      "name": "OperatorContractUpgraderUpdated",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": false,
-          "internalType": "address",
-          "name": "registryKeeper",
-          "type": "address"
-        }
-      ],
-      "name": "RegistryKeeperUpdated",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": false,
-          "internalType": "address",
-          "name": "operatorContract",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "internalType": "address",
-          "name": "keeper",
-          "type": "address"
-        }
-      ],
-      "name": "ServiceContractUpgraderUpdated",
-      "type": "event"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "defaultPanicButton",
-      "outputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "governance",
-      "outputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "name": "operatorContractUpgraders",
-      "outputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "name": "operatorContracts",
-      "outputs": [
-        {
-          "internalType": "enum KeepRegistry.ContractStatus",
-          "name": "",
-          "type": "uint8"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "name": "panicButtons",
-      "outputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "registryKeeper",
-      "outputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "name": "serviceContractUpgraders",
-      "outputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_governance",
-          "type": "address"
-        }
-      ],
-      "name": "setGovernance",
-      "outputs": [],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_registryKeeper",
-          "type": "address"
-        }
-      ],
-      "name": "setRegistryKeeper",
-      "outputs": [],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_panicButton",
-          "type": "address"
-        }
-      ],
-      "name": "setDefaultPanicButton",
-      "outputs": [],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_operatorContract",
-          "type": "address"
-        },
-        {
-          "internalType": "address",
-          "name": "_panicButton",
-          "type": "address"
-        }
-      ],
-      "name": "setOperatorContractPanicButton",
-      "outputs": [],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_operatorContract",
-          "type": "address"
-        }
-      ],
-      "name": "disableOperatorContractPanicButton",
-      "outputs": [],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_serviceContract",
-          "type": "address"
-        },
-        {
-          "internalType": "address",
-          "name": "_operatorContractUpgrader",
-          "type": "address"
-        }
-      ],
-      "name": "setOperatorContractUpgrader",
-      "outputs": [],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_operatorContract",
-          "type": "address"
-        },
-        {
-          "internalType": "address",
-          "name": "_serviceContractUpgrader",
-          "type": "address"
-        }
-      ],
-      "name": "setServiceContractUpgrader",
-      "outputs": [],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "operatorContract",
-          "type": "address"
-        }
-      ],
-      "name": "approveOperatorContract",
-      "outputs": [],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "operatorContract",
-          "type": "address"
-        }
-      ],
-      "name": "disableOperatorContract",
-      "outputs": [],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "operatorContract",
-          "type": "address"
-        }
-      ],
-      "name": "isNewOperatorContract",
-      "outputs": [
-        {
-          "internalType": "bool",
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "operatorContract",
-          "type": "address"
-        }
-      ],
-      "name": "isApprovedOperatorContract",
-      "outputs": [
-        {
-          "internalType": "bool",
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_serviceContract",
-          "type": "address"
-        }
-      ],
-      "name": "operatorContractUpgraderFor",
-      "outputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_operatorContract",
-          "type": "address"
-        }
-      ],
-      "name": "serviceContractUpgraderFor",
-      "outputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    }
-  ],
-  "metadata": 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-  "source": "pragma solidity 0.5.17;\n\n/// @title KeepRegistry\n/// @notice Governance owned registry of approved contracts and roles.\ncontract KeepRegistry {\n    enum ContractStatus {New, Approved, Disabled}\n\n    // Governance role is to enable recovery from key compromise by rekeying\n    // other roles. Also, it can disable operator contract panic buttons\n    // permanently.\n    address public governance;\n\n    // Registry Keeper maintains approved operator contracts. Each operator\n    // contract must be approved before it can be authorized by a staker or\n    // used by a service contract.\n    address public registryKeeper;\n\n    // Each operator contract has a Panic Button which can disable malicious\n    // or malfunctioning contract that have been previously approved by the\n    // Registry Keeper.\n    //\n    // New operator contract added to the registry has a default panic button\n    // value assigned (defaultPanicButton). Panic button for each operator\n    // contract can be later updated by Governance to individual value.\n    //\n    // It is possible to disable panic button for individual contract by\n    // setting the panic button to zero address. In such case, operator contract\n    // can not be disabled and is permanently approved in the registry.\n    mapping(address => address) public panicButtons;\n\n    // Default panic button for each new operator contract added to the\n    // registry. Can be later updated for each contract.\n    address public defaultPanicButton;\n\n    // Each service contract has a Operator Contract Upgrader whose purpose\n    // is to manage operator contracts for that specific service contract.\n    // The Operator Contract Upgrader can add new operator contracts to the\n    // service contract’s operator contract list, and deprecate old ones.\n    mapping(address => address) public operatorContractUpgraders;\n\n    // Operator contract may have a Service Contract Upgrader whose purpose is\n    // to manage service contracts for that specific operator contract.\n    // Service Contract Upgrader can add and remove service contracts\n    // from the list of service contracts approved to work with the operator\n    // contract. List of service contracts is maintained in the operator\n    // contract and is optional - not every operator contract needs to have\n    // a list of service contracts it wants to cooperate with.\n    mapping(address => address) public serviceContractUpgraders;\n\n    // The registry of operator contracts\n    mapping(address => ContractStatus) public operatorContracts;\n\n    event OperatorContractApproved(address operatorContract);\n    event OperatorContractDisabled(address operatorContract);\n\n    event GovernanceUpdated(address governance);\n    event RegistryKeeperUpdated(address registryKeeper);\n    event DefaultPanicButtonUpdated(address defaultPanicButton);\n    event OperatorContractPanicButtonDisabled(address operatorContract);\n    event OperatorContractPanicButtonUpdated(\n        address operatorContract,\n        address panicButton\n    );\n    event OperatorContractUpgraderUpdated(\n        address serviceContract,\n        address upgrader\n    );\n    event ServiceContractUpgraderUpdated(\n        address operatorContract,\n        address keeper\n    );\n\n    modifier onlyGovernance() {\n        require(governance == msg.sender, \"Not authorized\");\n        _;\n    }\n\n    modifier onlyRegistryKeeper() {\n        require(registryKeeper == msg.sender, \"Not authorized\");\n        _;\n    }\n\n    modifier onlyPanicButton(address _operatorContract) {\n        address panicButton = panicButtons[_operatorContract];\n        require(panicButton != address(0), \"Panic button disabled\");\n        require(panicButton == msg.sender, \"Not authorized\");\n        _;\n    }\n\n    modifier onlyForNewContract(address _operatorContract) {\n        require(\n            isNewOperatorContract(_operatorContract),\n            \"Not a new operator contract\"\n        );\n        _;\n    }\n\n    modifier onlyForApprovedContract(address _operatorContract) {\n        require(\n            isApprovedOperatorContract(_operatorContract),\n            \"Not an approved operator contract\"\n        );\n        _;\n    }\n\n    constructor() public {\n        governance = msg.sender;\n        registryKeeper = msg.sender;\n        defaultPanicButton = msg.sender;\n    }\n\n    function setGovernance(address _governance) public onlyGovernance {\n        governance = _governance;\n        emit GovernanceUpdated(governance);\n    }\n\n    function setRegistryKeeper(address _registryKeeper) public onlyGovernance {\n        registryKeeper = _registryKeeper;\n        emit RegistryKeeperUpdated(registryKeeper);\n    }\n\n    function setDefaultPanicButton(address _panicButton) public onlyGovernance {\n        defaultPanicButton = _panicButton;\n        emit DefaultPanicButtonUpdated(defaultPanicButton);\n    }\n\n    function setOperatorContractPanicButton(\n        address _operatorContract,\n        address _panicButton\n    ) public onlyForApprovedContract(_operatorContract) onlyGovernance {\n        require(\n            panicButtons[_operatorContract] != address(0),\n            \"Disabled panic button cannot be updated\"\n        );\n        require(\n            _panicButton != address(0),\n            \"Panic button must be non-zero address\"\n        );\n\n        panicButtons[_operatorContract] = _panicButton;\n\n        emit OperatorContractPanicButtonUpdated(\n            _operatorContract,\n            _panicButton\n        );\n    }\n\n    function disableOperatorContractPanicButton(address _operatorContract)\n        public\n        onlyForApprovedContract(_operatorContract)\n        onlyGovernance\n    {\n        require(\n            panicButtons[_operatorContract] != address(0),\n            \"Panic button already disabled\"\n        );\n\n        panicButtons[_operatorContract] = address(0);\n\n        emit OperatorContractPanicButtonDisabled(_operatorContract);\n    }\n\n    function setOperatorContractUpgrader(\n        address _serviceContract,\n        address _operatorContractUpgrader\n    ) public onlyGovernance {\n        operatorContractUpgraders[_serviceContract] = _operatorContractUpgrader;\n        emit OperatorContractUpgraderUpdated(\n            _serviceContract,\n            _operatorContractUpgrader\n        );\n    }\n\n    function setServiceContractUpgrader(\n        address _operatorContract,\n        address _serviceContractUpgrader\n    ) public onlyGovernance {\n        serviceContractUpgraders[_operatorContract] = _serviceContractUpgrader;\n        emit ServiceContractUpgraderUpdated(\n            _operatorContract,\n            _serviceContractUpgrader\n        );\n    }\n\n    function approveOperatorContract(address operatorContract)\n        public\n        onlyForNewContract(operatorContract)\n        onlyRegistryKeeper\n    {\n        operatorContracts[operatorContract] = ContractStatus.Approved;\n        panicButtons[operatorContract] = defaultPanicButton;\n        emit OperatorContractApproved(operatorContract);\n    }\n\n    function disableOperatorContract(address operatorContract)\n        public\n        onlyForApprovedContract(operatorContract)\n        onlyPanicButton(operatorContract)\n    {\n        operatorContracts[operatorContract] = ContractStatus.Disabled;\n        emit OperatorContractDisabled(operatorContract);\n    }\n\n    function isNewOperatorContract(address operatorContract)\n        public\n        view\n        returns (bool)\n    {\n        return operatorContracts[operatorContract] == ContractStatus.New;\n    }\n\n    function isApprovedOperatorContract(address operatorContract)\n        public\n        view\n        returns (bool)\n    {\n        return operatorContracts[operatorContract] == ContractStatus.Approved;\n    }\n\n    function operatorContractUpgraderFor(address _serviceContract)\n        public\n        view\n        returns (address)\n    {\n        return operatorContractUpgraders[_serviceContract];\n    }\n\n    function serviceContractUpgraderFor(address _operatorContract)\n        public\n        view\n        returns (address)\n    {\n        return serviceContractUpgraders[_operatorContract];\n    }\n}\n",
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-  "ast": {
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-                      "type": "address",
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-                    "children": [
-                      {
-                        "attributes": {
-                          "name": "address",
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-                        "attributes": {
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-                            },
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-                          },
-                          {
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-                      "name": "",
-                      "scope": 6119,
-                      "stateVariable": false,
-                      "storageLocation": "default",
-                      "type": "address",
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-                      "visibility": "internal"
-                    },
-                    "children": [
-                      {
-                        "attributes": {
-                          "name": "address",
-                          "stateMutability": "nonpayable",
-                          "type": "address"
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-                "name": "ParameterList",
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-              },
-              {
-                "children": [
-                  {
-                    "attributes": {
-                      "functionReturnParameters": 6113
-                    },
-                    "children": [
-                      {
-                        "attributes": {
-                          "argumentTypes": null,
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-                          "isLValue": true,
-                          "isPure": false,
-                          "lValueRequested": false,
-                          "type": "address"
-                        },
-                        "children": [
-                          {
-                            "attributes": {
-                              "argumentTypes": null,
-                              "overloadedDeclarations": [null],
-                              "referencedDeclaration": 5702,
-                              "type": "mapping(address => address)",
-                              "value": "serviceContractUpgraders"
-                            },
-                            "id": 6114,
-                            "name": "Identifier",
-                            "src": "8017:24:26"
-                          },
-                          {
-                            "attributes": {
-                              "argumentTypes": null,
-                              "overloadedDeclarations": [null],
-                              "referencedDeclaration": 6109,
-                              "type": "address",
-                              "value": "_operatorContract"
-                            },
-                            "id": 6115,
-                            "name": "Identifier",
-                            "src": "8042:17:26"
-                          }
-                        ],
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-                        "name": "IndexAccess",
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-                      }
-                    ],
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-    ],
-    "id": 6121,
-    "name": "SourceUnit",
-    "src": "0:8070:26"
-  },
-  "compiler": {
-    "name": "solc",
-    "version": "0.5.17+commit.d19bba13.Emscripten.clang"
-  },
-  "networks": {
-    "11155111": {
-      "events": {
-        "0x06f6f3a56d213caa17abfd21597ab6f8660771e05f9d430505ce755a2fdbb551": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": false,
-              "internalType": "address",
-              "name": "defaultPanicButton",
-              "type": "address"
-            }
-          ],
-          "name": "DefaultPanicButtonUpdated",
-          "type": "event"
-        },
-        "0x9d3e522e1e47a2f6009739342b9cc7b252a1888154e843ab55ee1c81745795ab": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": false,
-              "internalType": "address",
-              "name": "governance",
-              "type": "address"
-            }
-          ],
-          "name": "GovernanceUpdated",
-          "type": "event"
-        },
-        "0xb5d7fbd1d67a09be2dd3ba169be0ebfb43f1d3fd31b12e9dc9e5bd98517bfafb": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": false,
-              "internalType": "address",
-              "name": "operatorContract",
-              "type": "address"
-            }
-          ],
-          "name": "OperatorContractApproved",
-          "type": "event"
-        },
-        "0x61e8cab67fc6f073d7e3bbd8d936b519daf95f5655e8b22563c63eaba75f8fa3": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": false,
-              "internalType": "address",
-              "name": "operatorContract",
-              "type": "address"
-            }
-          ],
-          "name": "OperatorContractDisabled",
-          "type": "event"
-        },
-        "0x825c13d61db27b3c0dae8523f70310e87c2dfd99ea7023664547208322ff679c": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": false,
-              "internalType": "address",
-              "name": "operatorContract",
-              "type": "address"
-            }
-          ],
-          "name": "OperatorContractPanicButtonDisabled",
-          "type": "event"
-        },
-        "0x5f94d794a8a48b75e2ca89133a5b8748d14217648260c5247e57e3d314fd52a7": {
-          "anonymous": false,
-          "inputs": [
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-              "indexed": false,
-              "internalType": "address",
-              "name": "operatorContract",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "internalType": "address",
-              "name": "panicButton",
-              "type": "address"
-            }
-          ],
-          "name": "OperatorContractPanicButtonUpdated",
-          "type": "event"
-        },
-        "0x6f5a686a46a4dd38461a6a5ce54c3b8dd7b989914b5a0748c8d6669c79477852": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": false,
-              "internalType": "address",
-              "name": "serviceContract",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "internalType": "address",
-              "name": "upgrader",
-              "type": "address"
-            }
-          ],
-          "name": "OperatorContractUpgraderUpdated",
-          "type": "event"
-        },
-        "0xe5ecd8c922f03a416959a48c633d1bfdd1615ea46923a0a3e5d65ec90a38e038": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": false,
-              "internalType": "address",
-              "name": "registryKeeper",
-              "type": "address"
-            }
-          ],
-          "name": "RegistryKeeperUpdated",
-          "type": "event"
-        },
-        "0x067d7db72df8e5428d719a48ef14b072cdb3942706bfc6becc7198a316d73b78": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": false,
-              "internalType": "address",
-              "name": "operatorContract",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "internalType": "address",
-              "name": "keeper",
-              "type": "address"
-            }
-          ],
-          "name": "ServiceContractUpgraderUpdated",
-          "type": "event"
-        }
-      },
-      "links": {},
-      "address": "0x22647FfAe391540d584599818CA22fdF18890753",
-      "transactionHash": "0xd2331365137c15daabaaf9e62f5345ed9088410462cec1f28f9c45050ab53467"
-    }
-  },
-  "schemaVersion": "3.4.8",
-  "updatedAt": "2023-09-12T08:42:13.375Z",
-  "networkType": "ethereum",
-  "devdoc": {
-    "methods": {},
-    "title": "KeepRegistry"
-  },
-  "userdoc": {
-    "methods": {},
-    "notice": "Governance owned registry of approved contracts and roles."
-  }
-}
diff --git a/external/sepolia/KeepToken.json b/external/sepolia/KeepToken.json
deleted file mode 100644
index f8cfdf06..00000000
--- a/external/sepolia/KeepToken.json
+++ /dev/null
@@ -1,2811 +0,0 @@
-{
-  "contractName": "KeepToken",
-  "abi": [
-    {
-      "inputs": [],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "constructor"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "owner",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "spender",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "internalType": "uint256",
-          "name": "value",
-          "type": "uint256"
-        }
-      ],
-      "name": "Approval",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "from",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "to",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "internalType": "uint256",
-          "name": "value",
-          "type": "uint256"
-        }
-      ],
-      "name": "Transfer",
-      "type": "event"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "DECIMALS",
-      "outputs": [
-        {
-          "internalType": "uint8",
-          "name": "",
-          "type": "uint8"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "INITIAL_SUPPLY",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "NAME",
-      "outputs": [
-        {
-          "internalType": "string",
-          "name": "",
-          "type": "string"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "SYMBOL",
-      "outputs": [
-        {
-          "internalType": "string",
-          "name": "",
-          "type": "string"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "owner",
-          "type": "address"
-        },
-        {
-          "internalType": "address",
-          "name": "spender",
-          "type": "address"
-        }
-      ],
-      "name": "allowance",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "spender",
-          "type": "address"
-        },
-        {
-          "internalType": "uint256",
-          "name": "amount",
-          "type": "uint256"
-        }
-      ],
-      "name": "approve",
-      "outputs": [
-        {
-          "internalType": "bool",
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "account",
-          "type": "address"
-        }
-      ],
-      "name": "balanceOf",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "uint256",
-          "name": "amount",
-          "type": "uint256"
-        }
-      ],
-      "name": "burn",
-      "outputs": [],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "account",
-          "type": "address"
-        },
-        {
-          "internalType": "uint256",
-          "name": "amount",
-          "type": "uint256"
-        }
-      ],
-      "name": "burnFrom",
-      "outputs": [],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "decimals",
-      "outputs": [
-        {
-          "internalType": "uint8",
-          "name": "",
-          "type": "uint8"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "spender",
-          "type": "address"
-        },
-        {
-          "internalType": "uint256",
-          "name": "subtractedValue",
-          "type": "uint256"
-        }
-      ],
-      "name": "decreaseAllowance",
-      "outputs": [
-        {
-          "internalType": "bool",
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "spender",
-          "type": "address"
-        },
-        {
-          "internalType": "uint256",
-          "name": "addedValue",
-          "type": "uint256"
-        }
-      ],
-      "name": "increaseAllowance",
-      "outputs": [
-        {
-          "internalType": "bool",
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "name",
-      "outputs": [
-        {
-          "internalType": "string",
-          "name": "",
-          "type": "string"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "symbol",
-      "outputs": [
-        {
-          "internalType": "string",
-          "name": "",
-          "type": "string"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "totalSupply",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "recipient",
-          "type": "address"
-        },
-        {
-          "internalType": "uint256",
-          "name": "amount",
-          "type": "uint256"
-        }
-      ],
-      "name": "transfer",
-      "outputs": [
-        {
-          "internalType": "bool",
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "sender",
-          "type": "address"
-        },
-        {
-          "internalType": "address",
-          "name": "recipient",
-          "type": "address"
-        },
-        {
-          "internalType": "uint256",
-          "name": "amount",
-          "type": "uint256"
-        }
-      ],
-      "name": "transferFrom",
-      "outputs": [
-        {
-          "internalType": "bool",
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_spender",
-          "type": "address"
-        },
-        {
-          "internalType": "uint256",
-          "name": "_value",
-          "type": "uint256"
-        },
-        {
-          "internalType": "bytes",
-          "name": "_extraData",
-          "type": "bytes"
-        }
-      ],
-      "name": "approveAndCall",
-      "outputs": [
-        {
-          "internalType": "bool",
-          "name": "success",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    }
-  ],
-  "metadata": "{\"compiler\":{\"version\":\"0.5.17+commit.d19bba13\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"Approval\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"Transfer\",\"type\":\"event\"},{\"constant\":true,\"inputs\":[],\"name\":\"DECIMALS\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"INITIAL_SUPPLY\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"NAME\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"SYMBOL\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"}],\"name\":\"allowance\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"approve\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"_spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_value\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"_extraData\",\"type\":\"bytes\"}],\"name\":\"approveAndCall\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"success\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"}],\"name\":\"balanceOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"burn\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"burnFrom\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"decimals\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"subtractedValue\",\"type\":\"uint256\"}],\"name\":\"decreaseAllowance\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"addedValue\",\"type\":\"uint256\"}],\"name\":\"increaseAllowance\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"name\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"symbol\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"totalSupply\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"transfer\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"transferFrom\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"}],\"devdoc\":{\"details\":\"Standard ERC20Burnable token\",\"methods\":{\"allowance(address,address)\":{\"details\":\"See {IERC20-allowance}.\"},\"approve(address,uint256)\":{\"details\":\"See {IERC20-approve}.     * Requirements:     * - `spender` cannot be the zero address.\"},\"approveAndCall(address,uint256,bytes)\":{\"params\":{\"_extraData\":\"Extra information to send to the approved contract.\",\"_spender\":\"The address authorized to spend.\",\"_value\":\"The max amount they can spend.\"}},\"balanceOf(address)\":{\"details\":\"See {IERC20-balanceOf}.\"},\"burn(uint256)\":{\"details\":\"Destroys `amount` tokens from the caller.     * See {ERC20-_burn}.\"},\"burnFrom(address,uint256)\":{\"details\":\"See {ERC20-_burnFrom}.\"},\"constructor\":{\"details\":\"Gives msg.sender all of existing tokens.\"},\"decimals()\":{\"details\":\"Returns the number of decimals used to get its user representation. For example, if `decimals` equals `2`, a balance of `505` tokens should be displayed to a user as `5,05` (`505 / 10 ** 2`).     * Tokens usually opt for a value of 18, imitating the relationship between Ether and Wei.     * NOTE: This information is only used for _display_ purposes: it in no way affects any of the arithmetic of the contract, including {IERC20-balanceOf} and {IERC20-transfer}.\"},\"decreaseAllowance(address,uint256)\":{\"details\":\"Atomically decreases the allowance granted to `spender` by the caller.     * This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}.     * Emits an {Approval} event indicating the updated allowance.     * Requirements:     * - `spender` cannot be the zero address. - `spender` must have allowance for the caller of at least `subtractedValue`.\"},\"increaseAllowance(address,uint256)\":{\"details\":\"Atomically increases the allowance granted to `spender` by the caller.     * This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}.     * Emits an {Approval} event indicating the updated allowance.     * Requirements:     * - `spender` cannot be the zero address.\"},\"name()\":{\"details\":\"Returns the name of the token.\"},\"symbol()\":{\"details\":\"Returns the symbol of the token, usually a shorter version of the name.\"},\"totalSupply()\":{\"details\":\"See {IERC20-totalSupply}.\"},\"transfer(address,uint256)\":{\"details\":\"See {IERC20-transfer}.     * Requirements:     * - `recipient` cannot be the zero address. - the caller must have a balance of at least `amount`.\"},\"transferFrom(address,address,uint256)\":{\"details\":\"See {IERC20-transferFrom}.     * Emits an {Approval} event indicating the updated allowance. This is not required by the EIP. See the note at the beginning of {ERC20};     * Requirements: - `sender` and `recipient` cannot be the zero address. - `sender` must have a balance of at least `amount`. - the caller must have allowance for `sender`'s tokens of at least `amount`.\"}},\"title\":\"KEEP Token\"},\"userdoc\":{\"methods\":{\"approveAndCall(address,uint256,bytes)\":{\"notice\":\"Set allowance for other address and notify. Allows `_spender` to spend no more than `_value` tokens on your behalf and then ping the contract about it.\"}}}},\"settings\":{\"compilationTarget\":{\"project:/contracts/KeepToken.sol\":\"KeepToken\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"optimizer\":{\"enabled\":false,\"runs\":200},\"remappings\":[]},\"sources\":{\"openzeppelin-solidity/contracts/GSN/Context.sol\":{\"keccak256\":\"0x90a3995645af7562d84b9d69363ffa5ae7217714ab61e951bf7bc450f40e4061\",\"urls\":[\"bzz-raw://216ef9d6b614db4eb46970b4e84903f2534a45572dd30a79f0041f1a5830f436\",\"dweb:/ipfs/QmNPrJ4MWKUAWzKXpUqeyKRUfosaoANZAqXgvepdrCwZAG\"]},\"openzeppelin-solidity/contracts/math/SafeMath.sol\":{\"keccak256\":\"0x640b6dee7a4b830bdfd52b5031a07fc2b12209f5b2e29e5d364a7d37f69d8076\",\"urls\":[\"bzz-raw://31113152e1ddb78fe7a4197f247591ca894e93f916867beb708d8e747b6cc74f\",\"dweb:/ipfs/QmbZaJyXdpsYGykVhHH9qpVGQg9DGCxE2QufbCUy3daTgq\"]},\"openzeppelin-solidity/contracts/token/ERC20/ERC20.sol\":{\"keccak256\":\"0x65a4078c03875c25413a068ce9cfdd7e68a90f8786612d1189c89341e6e3b802\",\"urls\":[\"bzz-raw://45c0d95495b944fbb1aa09d900b0ab530903a432125ab8fddfa05064a7988991\",\"dweb:/ipfs/Qma2VeknkKA1THeubGzshWFk44BktXkXP1UKp9Un2uDSsu\"]},\"openzeppelin-solidity/contracts/token/ERC20/ERC20Burnable.sol\":{\"keccak256\":\"0x9b94356691f3cbf90a5d83ae3fdf6a5a662bb004d2bd8b034160d60221807e64\",\"urls\":[\"bzz-raw://14a9d33db455302b8bb9fdb28998efefbe5a1cb41b29e31391609f646b2ab351\",\"dweb:/ipfs/Qmd4wFr6GEMZnnxgXeq3gmp7cs8tqDuHp3TVNhCbjnux2V\"]},\"openzeppelin-solidity/contracts/token/ERC20/ERC20Detailed.sol\":{\"keccak256\":\"0x4a3a810b7ebe742e897e1fd428b3eeed2196d3acea58eaf9c566ed10d545d2ed\",\"urls\":[\"bzz-raw://28d03f328e19e4099d5013de0649afaeaabac1a614e130767ab1cb4aca9775b6\",\"dweb:/ipfs/Qmb9iW7yNuYehB2NfhRMs9TakqbLVQhBhmGMkaDZ5g1Eb4\"]},\"openzeppelin-solidity/contracts/token/ERC20/IERC20.sol\":{\"keccak256\":\"0xe5bb0f57cff3e299f360052ba50f1ea0fff046df2be070b6943e0e3c3fdad8a9\",\"urls\":[\"bzz-raw://59fd025151435da35faa8093a5c7a17de02de9d08ad27275c5cdf05050820d91\",\"dweb:/ipfs/QmQMvwEcPhoRXzbXyrdoeRtvLoifUW9Qh7Luho7bmUPRkc\"]},\"project:/contracts/KeepToken.sol\":{\"keccak256\":\"0x42abcd9c9c67d8d83b91a01e42abde3355b3a67fb7c510d7d8b63b5e23d3defe\",\"urls\":[\"bzz-raw://ef26e4ad4042c74e230a343f9e69c2d142b581e4a2c7ee27ec51a1f7e9f91a68\",\"dweb:/ipfs/QmfJ9cEpzj2WQ5upvizC16pthvC2vQP8geFeUATFb4ov2G\"]}},\"version\":1}",
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-  "source": "pragma solidity 0.5.17;\n\nimport \"openzeppelin-solidity/contracts/token/ERC20/ERC20Burnable.sol\";\nimport \"openzeppelin-solidity/contracts/token/ERC20/ERC20Detailed.sol\";\n\n/// @dev Interface of recipient contract for approveAndCall pattern.\ninterface tokenRecipient {\n    function receiveApproval(\n        address _from,\n        uint256 _value,\n        address _token,\n        bytes calldata _extraData\n    ) external;\n}\n\n/// @title KEEP Token\n/// @dev Standard ERC20Burnable token\ncontract KeepToken is ERC20Burnable, ERC20Detailed {\n    string public constant NAME = \"KEEP Token\";\n    string public constant SYMBOL = \"KEEP\";\n    uint8 public constant DECIMALS = 18; // The number of digits after the decimal place when displaying token values on-screen.\n    uint256 public constant INITIAL_SUPPLY = 10**27; // 1 billion tokens, 18 decimal places.\n\n    /// @dev Gives msg.sender all of existing tokens.\n    constructor() public ERC20Detailed(NAME, SYMBOL, DECIMALS) {\n        _mint(msg.sender, INITIAL_SUPPLY);\n    }\n\n    /// @notice Set allowance for other address and notify.\n    /// Allows `_spender` to spend no more than `_value` tokens\n    /// on your behalf and then ping the contract about it.\n    /// @param _spender The address authorized to spend.\n    /// @param _value The max amount they can spend.\n    /// @param _extraData Extra information to send to the approved contract.\n    function approveAndCall(\n        address _spender,\n        uint256 _value,\n        bytes memory _extraData\n    ) public returns (bool success) {\n        tokenRecipient spender = tokenRecipient(_spender);\n        if (approve(_spender, _value)) {\n            spender.receiveApproval(\n                msg.sender,\n                _value,\n                address(this),\n                _extraData\n            );\n            return true;\n        }\n    }\n}\n",
-  "sourcePath": "/Users/michalina/workspace2/keep-core/solidity-v1/contracts/KeepToken.sol",
-  "ast": {
-    "absolutePath": "project:/contracts/KeepToken.sol",
-    "exportedSymbols": {
-      "KeepToken": [6208],
-      "tokenRecipient": [6136]
-    },
-    "id": 6209,
-    "nodeType": "SourceUnit",
-    "nodes": [
-      {
-        "id": 6122,
-        "literals": ["solidity", "0.5", ".17"],
-        "nodeType": "PragmaDirective",
-        "src": "0:23:27"
-      },
-      {
-        "absolutePath": "openzeppelin-solidity/contracts/token/ERC20/ERC20Burnable.sol",
-        "file": "openzeppelin-solidity/contracts/token/ERC20/ERC20Burnable.sol",
-        "id": 6123,
-        "nodeType": "ImportDirective",
-        "scope": 6209,
-        "sourceUnit": 1024,
-        "src": "25:71:27",
-        "symbolAliases": [],
-        "unitAlias": ""
-      },
-      {
-        "absolutePath": "openzeppelin-solidity/contracts/token/ERC20/ERC20Detailed.sol",
-        "file": "openzeppelin-solidity/contracts/token/ERC20/ERC20Detailed.sol",
-        "id": 6124,
-        "nodeType": "ImportDirective",
-        "scope": 6209,
-        "sourceUnit": 1082,
-        "src": "97:71:27",
-        "symbolAliases": [],
-        "unitAlias": ""
-      },
-      {
-        "baseContracts": [],
-        "contractDependencies": [],
-        "contractKind": "interface",
-        "documentation": "@dev Interface of recipient contract for approveAndCall pattern.",
-        "fullyImplemented": false,
-        "id": 6136,
-        "linearizedBaseContracts": [6136],
-        "name": "tokenRecipient",
-        "nodeType": "ContractDefinition",
-        "nodes": [
-          {
-            "body": null,
-            "documentation": null,
-            "id": 6135,
-            "implemented": false,
-            "kind": "function",
-            "modifiers": [],
-            "name": "receiveApproval",
-            "nodeType": "FunctionDefinition",
-            "parameters": {
-              "id": 6133,
-              "nodeType": "ParameterList",
-              "parameters": [
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-                  "constant": false,
-                  "id": 6126,
-                  "name": "_from",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 6135,
-                  "src": "304:13:27",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 6125,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "304:7:27",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                },
-                {
-                  "constant": false,
-                  "id": 6128,
-                  "name": "_value",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 6135,
-                  "src": "327:14:27",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
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-                    "typeString": "uint256"
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-                  "src": "375:25:27",
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-              "src": "294:112:27"
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-              "src": "415:0:27"
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-            "src": "270:146:27",
-            "stateMutability": "nonpayable",
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-            "visibility": "external"
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-      },
-      {
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-            "baseName": {
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-              "name": "ERC20Burnable",
-              "nodeType": "UserDefinedTypeName",
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-              "src": "502:13:27",
-              "typeDescriptions": {
-                "typeIdentifier": "t_contract$_ERC20Burnable_$1023",
-                "typeString": "contract ERC20Burnable"
-              }
-            },
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-            "nodeType": "InheritanceSpecifier",
-            "src": "502:13:27"
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-          {
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-              "name": "ERC20Detailed",
-              "nodeType": "UserDefinedTypeName",
-              "referencedDeclaration": 1081,
-              "src": "517:13:27",
-              "typeDescriptions": {
-                "typeIdentifier": "t_contract$_ERC20Detailed_$1081",
-                "typeString": "contract ERC20Detailed"
-              }
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-            "id": 6140,
-            "nodeType": "InheritanceSpecifier",
-            "src": "517:13:27"
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-        ],
-        "contractDependencies": [64, 989, 1023, 1081, 1150],
-        "contractKind": "contract",
-        "documentation": "@title KEEP Token\n @dev Standard ERC20Burnable token",
-        "fullyImplemented": true,
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-              "isConstant": false,
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-              "nodeType": "Literal",
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-                            "attributes": {
-                              "contractScope": null,
-                              "name": "tokenRecipient",
-                              "referencedDeclaration": 6136,
-                              "type": "contract tokenRecipient"
-                            },
-                            "id": 6180,
-                            "name": "UserDefinedTypeName",
-                            "src": "1546:14:27"
-                          }
-                        ],
-                        "id": 6181,
-                        "name": "VariableDeclaration",
-                        "src": "1546:22:27"
-                      },
-                      {
-                        "attributes": {
-                          "argumentTypes": null,
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": false,
-                          "isStructConstructorCall": false,
-                          "lValueRequested": false,
-                          "names": [null],
-                          "type": "contract tokenRecipient",
-                          "type_conversion": true
-                        },
-                        "children": [
-                          {
-                            "attributes": {
-                              "argumentTypes": [
-                                {
-                                  "typeIdentifier": "t_address",
-                                  "typeString": "address"
-                                }
-                              ],
-                              "overloadedDeclarations": [null],
-                              "referencedDeclaration": 6136,
-                              "type": "type(contract tokenRecipient)",
-                              "value": "tokenRecipient"
-                            },
-                            "id": 6182,
-                            "name": "Identifier",
-                            "src": "1571:14:27"
-                          },
-                          {
-                            "attributes": {
-                              "argumentTypes": null,
-                              "overloadedDeclarations": [null],
-                              "referencedDeclaration": 6171,
-                              "type": "address",
-                              "value": "_spender"
-                            },
-                            "id": 6183,
-                            "name": "Identifier",
-                            "src": "1586:8:27"
-                          }
-                        ],
-                        "id": 6184,
-                        "name": "FunctionCall",
-                        "src": "1571:24:27"
-                      }
-                    ],
-                    "id": 6185,
-                    "name": "VariableDeclarationStatement",
-                    "src": "1546:49:27"
-                  },
-                  {
-                    "attributes": {
-                      "falseBody": null
-                    },
-                    "children": [
-                      {
-                        "attributes": {
-                          "argumentTypes": null,
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": false,
-                          "isStructConstructorCall": false,
-                          "lValueRequested": false,
-                          "names": [null],
-                          "type": "bool",
-                          "type_conversion": false
-                        },
-                        "children": [
-                          {
-                            "attributes": {
-                              "argumentTypes": [
-                                {
-                                  "typeIdentifier": "t_address",
-                                  "typeString": "address"
-                                },
-                                {
-                                  "typeIdentifier": "t_uint256",
-                                  "typeString": "uint256"
-                                }
-                              ],
-                              "overloadedDeclarations": [null],
-                              "referencedDeclaration": 682,
-                              "type": "function (address,uint256) returns (bool)",
-                              "value": "approve"
-                            },
-                            "id": 6186,
-                            "name": "Identifier",
-                            "src": "1609:7:27"
-                          },
-                          {
-                            "attributes": {
-                              "argumentTypes": null,
-                              "overloadedDeclarations": [null],
-                              "referencedDeclaration": 6171,
-                              "type": "address",
-                              "value": "_spender"
-                            },
-                            "id": 6187,
-                            "name": "Identifier",
-                            "src": "1617:8:27"
-                          },
-                          {
-                            "attributes": {
-                              "argumentTypes": null,
-                              "overloadedDeclarations": [null],
-                              "referencedDeclaration": 6173,
-                              "type": "uint256",
-                              "value": "_value"
-                            },
-                            "id": 6188,
-                            "name": "Identifier",
-                            "src": "1627:6:27"
-                          }
-                        ],
-                        "id": 6189,
-                        "name": "FunctionCall",
-                        "src": "1609:25:27"
-                      },
-                      {
-                        "children": [
-                          {
-                            "children": [
-                              {
-                                "attributes": {
-                                  "argumentTypes": null,
-                                  "isConstant": false,
-                                  "isLValue": false,
-                                  "isPure": false,
-                                  "isStructConstructorCall": false,
-                                  "lValueRequested": false,
-                                  "names": [null],
-                                  "type": "tuple()",
-                                  "type_conversion": false
-                                },
-                                "children": [
-                                  {
-                                    "attributes": {
-                                      "argumentTypes": [
-                                        {
-                                          "typeIdentifier": "t_address_payable",
-                                          "typeString": "address payable"
-                                        },
-                                        {
-                                          "typeIdentifier": "t_uint256",
-                                          "typeString": "uint256"
-                                        },
-                                        {
-                                          "typeIdentifier": "t_address",
-                                          "typeString": "address"
-                                        },
-                                        {
-                                          "typeIdentifier": "t_bytes_memory_ptr",
-                                          "typeString": "bytes memory"
-                                        }
-                                      ],
-                                      "isConstant": false,
-                                      "isLValue": false,
-                                      "isPure": false,
-                                      "lValueRequested": false,
-                                      "member_name": "receiveApproval",
-                                      "referencedDeclaration": 6135,
-                                      "type": "function (address,uint256,address,bytes memory) external"
-                                    },
-                                    "children": [
-                                      {
-                                        "attributes": {
-                                          "argumentTypes": null,
-                                          "overloadedDeclarations": [null],
-                                          "referencedDeclaration": 6181,
-                                          "type": "contract tokenRecipient",
-                                          "value": "spender"
-                                        },
-                                        "id": 6190,
-                                        "name": "Identifier",
-                                        "src": "1650:7:27"
-                                      }
-                                    ],
-                                    "id": 6192,
-                                    "name": "MemberAccess",
-                                    "src": "1650:23:27"
-                                  },
-                                  {
-                                    "attributes": {
-                                      "argumentTypes": null,
-                                      "isConstant": false,
-                                      "isLValue": false,
-                                      "isPure": false,
-                                      "lValueRequested": false,
-                                      "member_name": "sender",
-                                      "referencedDeclaration": null,
-                                      "type": "address payable"
-                                    },
-                                    "children": [
-                                      {
-                                        "attributes": {
-                                          "argumentTypes": null,
-                                          "overloadedDeclarations": [null],
-                                          "referencedDeclaration": 28146,
-                                          "type": "msg",
-                                          "value": "msg"
-                                        },
-                                        "id": 6193,
-                                        "name": "Identifier",
-                                        "src": "1691:3:27"
-                                      }
-                                    ],
-                                    "id": 6194,
-                                    "name": "MemberAccess",
-                                    "src": "1691:10:27"
-                                  },
-                                  {
-                                    "attributes": {
-                                      "argumentTypes": null,
-                                      "overloadedDeclarations": [null],
-                                      "referencedDeclaration": 6173,
-                                      "type": "uint256",
-                                      "value": "_value"
-                                    },
-                                    "id": 6195,
-                                    "name": "Identifier",
-                                    "src": "1719:6:27"
-                                  },
-                                  {
-                                    "attributes": {
-                                      "argumentTypes": null,
-                                      "isConstant": false,
-                                      "isLValue": false,
-                                      "isPure": false,
-                                      "isStructConstructorCall": false,
-                                      "lValueRequested": false,
-                                      "names": [null],
-                                      "type": "address",
-                                      "type_conversion": true
-                                    },
-                                    "children": [
-                                      {
-                                        "attributes": {
-                                          "argumentTypes": [
-                                            {
-                                              "typeIdentifier": "t_contract$_KeepToken_$6208",
-                                              "typeString": "contract KeepToken"
-                                            }
-                                          ],
-                                          "isConstant": false,
-                                          "isLValue": false,
-                                          "isPure": true,
-                                          "lValueRequested": false,
-                                          "type": "type(address)",
-                                          "value": "address"
-                                        },
-                                        "id": 6196,
-                                        "name": "ElementaryTypeNameExpression",
-                                        "src": "1743:7:27"
-                                      },
-                                      {
-                                        "attributes": {
-                                          "argumentTypes": null,
-                                          "overloadedDeclarations": [null],
-                                          "referencedDeclaration": 28212,
-                                          "type": "contract KeepToken",
-                                          "value": "this"
-                                        },
-                                        "id": 6197,
-                                        "name": "Identifier",
-                                        "src": "1751:4:27"
-                                      }
-                                    ],
-                                    "id": 6198,
-                                    "name": "FunctionCall",
-                                    "src": "1743:13:27"
-                                  },
-                                  {
-                                    "attributes": {
-                                      "argumentTypes": null,
-                                      "overloadedDeclarations": [null],
-                                      "referencedDeclaration": 6175,
-                                      "type": "bytes memory",
-                                      "value": "_extraData"
-                                    },
-                                    "id": 6199,
-                                    "name": "Identifier",
-                                    "src": "1774:10:27"
-                                  }
-                                ],
-                                "id": 6200,
-                                "name": "FunctionCall",
-                                "src": "1650:148:27"
-                              }
-                            ],
-                            "id": 6201,
-                            "name": "ExpressionStatement",
-                            "src": "1650:148:27"
-                          },
-                          {
-                            "attributes": {
-                              "functionReturnParameters": 6179
-                            },
-                            "children": [
-                              {
-                                "attributes": {
-                                  "argumentTypes": null,
-                                  "hexvalue": "74727565",
-                                  "isConstant": false,
-                                  "isLValue": false,
-                                  "isPure": true,
-                                  "lValueRequested": false,
-                                  "subdenomination": null,
-                                  "token": "bool",
-                                  "type": "bool",
-                                  "value": "true"
-                                },
-                                "id": 6202,
-                                "name": "Literal",
-                                "src": "1819:4:27"
-                              }
-                            ],
-                            "id": 6203,
-                            "name": "Return",
-                            "src": "1812:11:27"
-                          }
-                        ],
-                        "id": 6204,
-                        "name": "Block",
-                        "src": "1636:198:27"
-                      }
-                    ],
-                    "id": 6205,
-                    "name": "IfStatement",
-                    "src": "1605:229:27"
-                  }
-                ],
-                "id": 6206,
-                "name": "Block",
-                "src": "1536:304:27"
-              }
-            ],
-            "id": 6207,
-            "name": "FunctionDefinition",
-            "src": "1393:447:27"
-          }
-        ],
-        "id": 6208,
-        "name": "ContractDefinition",
-        "src": "480:1362:27"
-      }
-    ],
-    "id": 6209,
-    "name": "SourceUnit",
-    "src": "0:1843:27"
-  },
-  "compiler": {
-    "name": "solc",
-    "version": "0.5.17+commit.d19bba13.Emscripten.clang"
-  },
-  "networks": {
-    "11155111": {
-      "events": {},
-      "links": {},
-      "address": "0xa07f4E37C2E7089Ea3AFffbe51A6A281833a4D14",
-      "transactionHash": "0x44191b3e2a0bfbacca64d01739cd98f91ed47e34cbe3853e31535e8dc6542f51"
-    }
-  },
-  "schemaVersion": "3.4.8",
-  "updatedAt": "2023-09-12T08:40:37.348Z",
-  "networkType": "ethereum",
-  "devdoc": {
-    "details": "Standard ERC20Burnable token",
-    "methods": {
-      "allowance(address,address)": {
-        "details": "See {IERC20-allowance}."
-      },
-      "approve(address,uint256)": {
-        "details": "See {IERC20-approve}.     * Requirements:     * - `spender` cannot be the zero address."
-      },
-      "approveAndCall(address,uint256,bytes)": {
-        "params": {
-          "_extraData": "Extra information to send to the approved contract.",
-          "_spender": "The address authorized to spend.",
-          "_value": "The max amount they can spend."
-        }
-      },
-      "balanceOf(address)": {
-        "details": "See {IERC20-balanceOf}."
-      },
-      "burn(uint256)": {
-        "details": "Destroys `amount` tokens from the caller.     * See {ERC20-_burn}."
-      },
-      "burnFrom(address,uint256)": {
-        "details": "See {ERC20-_burnFrom}."
-      },
-      "constructor": {
-        "details": "Gives msg.sender all of existing tokens."
-      },
-      "decimals()": {
-        "details": "Returns the number of decimals used to get its user representation. For example, if `decimals` equals `2`, a balance of `505` tokens should be displayed to a user as `5,05` (`505 / 10 ** 2`).     * Tokens usually opt for a value of 18, imitating the relationship between Ether and Wei.     * NOTE: This information is only used for _display_ purposes: it in no way affects any of the arithmetic of the contract, including {IERC20-balanceOf} and {IERC20-transfer}."
-      },
-      "decreaseAllowance(address,uint256)": {
-        "details": "Atomically decreases the allowance granted to `spender` by the caller.     * This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}.     * Emits an {Approval} event indicating the updated allowance.     * Requirements:     * - `spender` cannot be the zero address. - `spender` must have allowance for the caller of at least `subtractedValue`."
-      },
-      "increaseAllowance(address,uint256)": {
-        "details": "Atomically increases the allowance granted to `spender` by the caller.     * This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}.     * Emits an {Approval} event indicating the updated allowance.     * Requirements:     * - `spender` cannot be the zero address."
-      },
-      "name()": {
-        "details": "Returns the name of the token."
-      },
-      "symbol()": {
-        "details": "Returns the symbol of the token, usually a shorter version of the name."
-      },
-      "totalSupply()": {
-        "details": "See {IERC20-totalSupply}."
-      },
-      "transfer(address,uint256)": {
-        "details": "See {IERC20-transfer}.     * Requirements:     * - `recipient` cannot be the zero address. - the caller must have a balance of at least `amount`."
-      },
-      "transferFrom(address,address,uint256)": {
-        "details": "See {IERC20-transferFrom}.     * Emits an {Approval} event indicating the updated allowance. This is not required by the EIP. See the note at the beginning of {ERC20};     * Requirements: - `sender` and `recipient` cannot be the zero address. - `sender` must have a balance of at least `amount`. - the caller must have allowance for `sender`'s tokens of at least `amount`."
-      }
-    },
-    "title": "KEEP Token"
-  },
-  "userdoc": {
-    "methods": {
-      "approveAndCall(address,uint256,bytes)": {
-        "notice": "Set allowance for other address and notify. Allows `_spender` to spend no more than `_value` tokens on your behalf and then ping the contract about it."
-      }
-    }
-  }
-}
diff --git a/external/sepolia/KeepTokenStaking.json b/external/sepolia/KeepTokenStaking.json
deleted file mode 100644
index dfbab92d..00000000
--- a/external/sepolia/KeepTokenStaking.json
+++ /dev/null
@@ -1,41590 +0,0 @@
-{
-  "contractName": "TokenStaking",
-  "abi": [
-    {
-      "inputs": [
-        {
-          "internalType": "contract ERC20Burnable",
-          "name": "_token",
-          "type": "address"
-        },
-        {
-          "internalType": "contract TokenGrant",
-          "name": "_tokenGrant",
-          "type": "address"
-        },
-        {
-          "internalType": "contract TokenStakingEscrow",
-          "name": "_escrow",
-          "type": "address"
-        },
-        {
-          "internalType": "contract KeepRegistry",
-          "name": "_registry",
-          "type": "address"
-        },
-        {
-          "internalType": "uint256",
-          "name": "_initializationPeriod",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "constructor"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "internalType": "address",
-          "name": "lockCreator",
-          "type": "address"
-        }
-      ],
-      "name": "ExpiredLockReleased",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "internalType": "address",
-          "name": "lockCreator",
-          "type": "address"
-        }
-      ],
-      "name": "LockReleased",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "beneficiary",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "authorizer",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "internalType": "uint256",
-          "name": "value",
-          "type": "uint256"
-        }
-      ],
-      "name": "OperatorStaked",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": false,
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        }
-      ],
-      "name": "RecoveredStake",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "owner",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        }
-      ],
-      "name": "StakeDelegated",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "internalType": "address",
-          "name": "lockCreator",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "internalType": "uint256",
-          "name": "until",
-          "type": "uint256"
-        }
-      ],
-      "name": "StakeLocked",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "newOwner",
-          "type": "address"
-        }
-      ],
-      "name": "StakeOwnershipTransferred",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "internalType": "uint256",
-          "name": "amount",
-          "type": "uint256"
-        }
-      ],
-      "name": "TokensSeized",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "internalType": "uint256",
-          "name": "amount",
-          "type": "uint256"
-        }
-      ],
-      "name": "TokensSlashed",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "internalType": "uint256",
-          "name": "newAmount",
-          "type": "uint256"
-        }
-      ],
-      "name": "TopUpCompleted",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "internalType": "uint256",
-          "name": "topUp",
-          "type": "uint256"
-        }
-      ],
-      "name": "TopUpInitiated",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "internalType": "uint256",
-          "name": "undelegatedAt",
-          "type": "uint256"
-        }
-      ],
-      "name": "Undelegated",
-      "type": "event"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_operator",
-          "type": "address"
-        },
-        {
-          "internalType": "address",
-          "name": "_operatorContract",
-          "type": "address"
-        }
-      ],
-      "name": "authorizeOperatorContract",
-      "outputs": [],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_operator",
-          "type": "address"
-        }
-      ],
-      "name": "authorizerOf",
-      "outputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_address",
-          "type": "address"
-        }
-      ],
-      "name": "balanceOf",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "balance",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_operator",
-          "type": "address"
-        }
-      ],
-      "name": "beneficiaryOf",
-      "outputs": [
-        {
-          "internalType": "address payable",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "delegatedAuthoritySource",
-          "type": "address"
-        }
-      ],
-      "name": "claimDelegatedAuthority",
-      "outputs": [],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "deployedAt",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "operatorContract",
-          "type": "address"
-        }
-      ],
-      "name": "getAuthoritySource",
-      "outputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "initializationPeriod",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_operatorContract",
-          "type": "address"
-        }
-      ],
-      "name": "isApprovedOperatorContract",
-      "outputs": [
-        {
-          "internalType": "bool",
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_operator",
-          "type": "address"
-        },
-        {
-          "internalType": "address",
-          "name": "_operatorContract",
-          "type": "address"
-        }
-      ],
-      "name": "isAuthorizedForOperator",
-      "outputs": [
-        {
-          "internalType": "bool",
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_operator",
-          "type": "address"
-        }
-      ],
-      "name": "ownerOf",
-      "outputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "minimumStake",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "undelegationPeriod",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_from",
-          "type": "address"
-        },
-        {
-          "internalType": "uint256",
-          "name": "_value",
-          "type": "uint256"
-        },
-        {
-          "internalType": "address",
-          "name": "_token",
-          "type": "address"
-        },
-        {
-          "internalType": "bytes",
-          "name": "_extraData",
-          "type": "bytes"
-        }
-      ],
-      "name": "receiveApproval",
-      "outputs": [],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_operator",
-          "type": "address"
-        }
-      ],
-      "name": "commitTopUp",
-      "outputs": [],
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-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_operator",
-          "type": "address"
-        }
-      ],
-      "name": "cancelStake",
-      "outputs": [],
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-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_operator",
-          "type": "address"
-        }
-      ],
-      "name": "undelegate",
-      "outputs": [],
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-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_operator",
-          "type": "address"
-        },
-        {
-          "internalType": "uint256",
-          "name": "_undelegationTimestamp",
-          "type": "uint256"
-        }
-      ],
-      "name": "undelegateAt",
-      "outputs": [],
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-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_operator",
-          "type": "address"
-        }
-      ],
-      "name": "recoverStake",
-      "outputs": [],
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-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_operator",
-          "type": "address"
-        }
-      ],
-      "name": "getDelegationInfo",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "amount",
-          "type": "uint256"
-        },
-        {
-          "internalType": "uint256",
-          "name": "createdAt",
-          "type": "uint256"
-        },
-        {
-          "internalType": "uint256",
-          "name": "undelegatedAt",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        },
-        {
-          "internalType": "uint256",
-          "name": "duration",
-          "type": "uint256"
-        }
-      ],
-      "name": "lockStake",
-      "outputs": [],
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-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        }
-      ],
-      "name": "unlockStake",
-      "outputs": [],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        },
-        {
-          "internalType": "address",
-          "name": "operatorContract",
-          "type": "address"
-        }
-      ],
-      "name": "releaseExpiredLock",
-      "outputs": [],
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-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        }
-      ],
-      "name": "isStakeLocked",
-      "outputs": [
-        {
-          "internalType": "bool",
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        }
-      ],
-      "name": "getLocks",
-      "outputs": [
-        {
-          "internalType": "address[]",
-          "name": "creators",
-          "type": "address[]"
-        },
-        {
-          "internalType": "uint256[]",
-          "name": "expirations",
-          "type": "uint256[]"
-        }
-      ],
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-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "uint256",
-          "name": "amountToSlash",
-          "type": "uint256"
-        },
-        {
-          "internalType": "address[]",
-          "name": "misbehavedOperators",
-          "type": "address[]"
-        }
-      ],
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-      "outputs": [],
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-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "uint256",
-          "name": "amountToSeize",
-          "type": "uint256"
-        },
-        {
-          "internalType": "uint256",
-          "name": "rewardMultiplier",
-          "type": "uint256"
-        },
-        {
-          "internalType": "address",
-          "name": "tattletale",
-          "type": "address"
-        },
-        {
-          "internalType": "address[]",
-          "name": "misbehavedOperators",
-          "type": "address[]"
-        }
-      ],
-      "name": "seize",
-      "outputs": [],
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-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        },
-        {
-          "internalType": "address",
-          "name": "newOwner",
-          "type": "address"
-        }
-      ],
-      "name": "transferStakeOwnership",
-      "outputs": [],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_operator",
-          "type": "address"
-        },
-        {
-          "internalType": "address",
-          "name": "_operatorContract",
-          "type": "address"
-        }
-      ],
-      "name": "eligibleStake",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "balance",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "_operator",
-          "type": "address"
-        },
-        {
-          "internalType": "address",
-          "name": "_operatorContract",
-          "type": "address"
-        }
-      ],
-      "name": "activeStake",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "balance",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "staker",
-          "type": "address"
-        },
-        {
-          "internalType": "address",
-          "name": "operatorContract",
-          "type": "address"
-        }
-      ],
-      "name": "hasMinimumStake",
-      "outputs": [
-        {
-          "internalType": "bool",
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
-    }
-  ],
-  "metadata": "{\"compiler\":{\"version\":\"0.5.17+commit.d19bba13\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"contract ERC20Burnable\",\"name\":\"_token\",\"type\":\"address\"},{\"internalType\":\"contract TokenGrant\",\"name\":\"_tokenGrant\",\"type\":\"address\"},{\"internalType\":\"contract TokenStakingEscrow\",\"name\":\"_escrow\",\"type\":\"address\"},{\"internalType\":\"contract 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ts\":[{\"internalType\":\"address payable\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"_operator\",\"type\":\"address\"}],\"name\":\"cancelStake\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"delegatedAuthoritySource\",\"type\":\"address\"}],\"name\":\"claimDelegatedAuthority\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"_operator\",\"type\":\"address\"}],\"name\":\"commitTopUp\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"deployedAt\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"_operator\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_operatorContract\",\"type\":\"address\"}],\"name\":\"eligibleStake\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"balance\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"operatorContract\",\"type\":\"address\"}],\"name\":\"getAuthoritySource\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"_operator\",\"type\":\"address\"}],\"name\":\"getDelegationInfo\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"createdAt\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"undelegatedAt\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"}],\"name\":\"getLocks\",\"outputs\":[{\"internalType\":\"address[]\",\"name\":\"creators\",\"type\":\"address[]\"},{\"internalType\":\"uint256[]\",\"name\":\"expirations\",\"type\":\"uint256[]\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"staker\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"operatorContract\",\"type\":\"address\"}],\"name\":\"hasMinimumStake\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"initializationPeriod\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"_operatorContract\",\"type\":\"address\"}],\"name\":\"isApprovedOperatorContract\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"_operator\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_operatorContract\",\"type\":\"address\"}],\"name\":\"isAuthorizedForOperator\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"}],\"name\":\"isStakeLocked\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"duration\",\"type\":\"uint256\"}],\"name\":\"lockStake\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"minimumStake\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"_operator\",\"type\":\"address\"}],\"name\":\"ownerOf\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"_from\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_value\",\"type\":\"uint256\"},{\"internalType\":\"address\",\"name\":\"_token\",\"type\":\"address\"},{\"internalType\":\"bytes\",\"name\":\"_extraData\",\"type\":\"bytes\"}],\"name\":\"receiveApproval\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"_operator\",\"type\":\"address\"}],\"name\":\"recoverStake\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"operatorContract\",\"type\":\"address\"}],\"name\":\"releaseExpiredLock\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"amountToSeize\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"rewardMultiplier\",\"type\":\"uint256\"},{\"internalType\":\"address\",\"name\":\"tattletale\",\"type\":\"address\"},{\"internalType\":\"address[]\",\"name\":\"misbehavedOperators\",\"type\":\"address[]\"}],\"name\":\"seize\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"amountToSlash\",\"type\":\"uint256\"},{\"internalType\":\"address[]\",\"name\":\"misbehavedOperators\",\"type\":\"address[]\"}],\"name\":\"slash\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"transferStakeOwnership\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"_operator\",\"type\":\"address\"}],\"name\":\"undelegate\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"_operator\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_undelegationTimestamp\",\"type\":\"uint256\"}],\"name\":\"undelegateAt\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"undelegationPeriod\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"}],\"name\":\"unlockStake\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"}],\"devdoc\":{\"methods\":{\"activeStake(address,address)\":{\"params\":{\"_operator\":\"address of stake operator.\",\"_operatorContract\":\"address of operator contract.\"},\"return\":\"an uint256 representing the eligible stake balance.\"},\"authorizeOperatorContract(address,address)\":{\"params\":{\"_operator\":\"address of stake operator.\",\"_operatorContract\":\"address of operator contract.\"}},\"authorizerOf(address)\":{\"return\":\"Authorizer address.\"},\"balanceOf(address)\":{\"params\":{\"_address\":\"The address to query the balance of.\"},\"return\":\"An uint256 representing the amount staked by the passed address.\"},\"beneficiaryOf(address)\":{\"return\":\"Beneficiary address.\"},\"cancelStake(address)\":{\"params\":{\"_operator\":\"Address of the stake operator.\"}},\"claimDelegatedAuthority(address)\":{\"details\":\"If `delegatedAuthoritySource` is an approved operator contract and recognizes the claimant, this relationship will be recorded in `delegatedAuthority`. Later, the claimant can slash, seize, place locks etc. on operators that have authorized the `delegatedAuthoritySource`. If the `delegatedAuthoritySource` is disabled with the panic button, any recipients of delegated authority from it will also be disabled.\"},\"commitTopUp(address)\":{\"params\":{\"_operator\":\"The operator with a pending top-up that is getting committed.\"}},\"constructor\":{\"params\":{\"_escrow\":\"Escrow dedicated for this staking contract.\",\"_initializationPeriod\":\"To avoid certain attacks on work selection, recently created operators must wait for a specific period of time before being eligible for work selection.\",\"_registry\":\"Keep contract registry contract.\",\"_token\":\"KEEP token contract.\",\"_tokenGrant\":\"KEEP token grant contract.\"}},\"eligibleStake(address,address)\":{\"params\":{\"_operator\":\"address of stake operator.\",\"_operatorContract\":\"address of operator contract.\"},\"return\":\"an uint256 representing the eligible stake balance.\"},\"getDelegationInfo(address)\":{\"params\":{\"_operator\":\"Operator address.\"},\"return\":\"amount The amount of tokens the given operator delegated.createdAt The time when the stake has been delegated.undelegatedAt The time when undelegation has been requested. If undelegation has not been requested, 0 is returned.\"},\"getLocks(address)\":{\"return\":\"creators The addresses of operator contracts that have placed a lock on the operator.expirations The expiration times of the locks placed on the operator.\"},\"hasMinimumStake(address,address)\":{\"params\":{\"operatorContract\":\"Operator contract's address\",\"staker\":\"Staker's address\"},\"return\":\"True if has enough active stake to participate in the network, false otherwise.\"},\"isApprovedOperatorContract(address)\":{\"params\":{\"_operatorContract\":\"address of operator contract.\"},\"return\":\"True if operator contract is approved, false if operator contract has not been approved or if it was disabled by the panic button.\"},\"isAuthorizedForOperator(address,address)\":{\"params\":{\"_operator\":\"address of stake operator.\",\"_operatorContract\":\"address of operator contract.\"}},\"lockStake(address,uint256)\":{\"params\":{\"duration\":\"Lock duration in seconds.\",\"operator\":\"Operator address.\"}},\"ownerOf(address)\":{\"return\":\"Stake owner address.\"},\"receiveApproval(address,uint256,address,bytes)\":{\"details\":\"Requires that the provided token contract be the same one linked to this contract.\",\"params\":{\"_extraData\":\"Data for stake delegation. This byte array must have the following values concatenated: - Beneficiary address (20 bytes), ignored for a top-up - Operator address (20 bytes) - Authorizer address (20 bytes), ignored for a top-up - Grant ID (32 bytes) - required only when called by TokenStakingEscrow\",\"_from\":\"The owner of the tokens who approved them to transfer.\",\"_token\":\"Token contract address.\",\"_value\":\"Approved amount for the transfer and stake.\"}},\"recoverStake(address)\":{\"params\":{\"_operator\":\"Operator address.\"}},\"releaseExpiredLock(address,address)\":{\"details\":\"Necessary for removing locks placed by contracts that have been disabled by the panic button. Also applicable to prevent inadvertent DoS of `recoverStake` if too many operator contracts have failed to clean up their locks.\"},\"seize(uint256,uint256,address,address[])\":{\"params\":{\"amountToSeize\":\"Token amount to seize from every misbehaved operator.\",\"misbehavedOperators\":\"Array of addresses to seize the tokens from.\",\"rewardMultiplier\":\"Reward adjustment in percentage. Min 1% and 100% max.\",\"tattletale\":\"Address to receive the 5% reward.\"}},\"slash(uint256,address[])\":{\"params\":{\"amountToSlash\":\"Token amount to slash from every misbehaved operator.\",\"misbehavedOperators\":\"Array of addresses to seize the tokens from.\"}},\"transferStakeOwnership(address,address)\":{\"params\":{\"newOwner\":\"Address of the new staking relationship owner.\",\"operator\":\"Address of the stake operator.\"}},\"undelegate(address)\":{\"params\":{\"_operator\":\"Address of the stake operator.\"}},\"undelegateAt(address,uint256)\":{\"params\":{\"_operator\":\"Address of the stake operator.\",\"_undelegationTimestamp\":\"The timestamp undelegation is to start at.\"}},\"unlockStake(address)\":{\"details\":\"Only for operator contracts. To remove expired or disabled locks, use `releaseExpiredLocks`. The authorization check ensures that the caller must have been able to place a lock on the operator sometime in the past. We don't need to check for current approval status of the caller because unlocking stake cannot harm the operator nor interfere with other operator contracts. Therefore even disabled operator contracts may freely unlock stake.\",\"params\":{\"operator\":\"Operator address.\"}}},\"title\":\"TokenStaking\"},\"userdoc\":{\"methods\":{\"activeStake(address,address)\":{\"notice\":\"Gets the active stake balance of the specified address. An active stake is a stake that passed the initialization period, and may be in the process of undelegation but has not been released yet, either because the undelegation period is not over, or because the operator contract has an active lock on the operator. Also, the operator had to approve the specified operator contract.     /// The difference between eligible stake is that active stake does not make the operator eligible for work selection but it may be still finishing earlier work until the stake is released. Operator with a minimum required amount of active stake can join the network but cannot be selected to any new work. \"},\"authorizeOperatorContract(address,address)\":{\"notice\":\"Authorizes operator contract to access staked token balance of the provided operator. Can only be executed by stake operator authorizer. Contracts using delegated authority cannot be authorized with `authorizeOperatorContract`. Instead, authorize `getAuthoritySource(_operatorContract)`.\"},\"authorizerOf(address)\":{\"notice\":\"Gets the authorizer for the specified operator address.\"},\"balanceOf(address)\":{\"notice\":\"Gets the stake balance of the specified address.\"},\"beneficiaryOf(address)\":{\"notice\":\"Gets the beneficiary for the specified operator address.\"},\"cancelStake(address)\":{\"notice\":\"Cancels stake of tokens within the operator initialization period without being subjected to the token lockup for the undelegation period. This can be used to undo mistaken delegation to the wrong operator address.\"},\"claimDelegatedAuthority(address)\":{\"notice\":\"Grant the sender the same authority as `delegatedAuthoritySource`\"},\"commitTopUp(address)\":{\"notice\":\"Commits pending top-up for the provided operator. If the top-up did not pass the initialization period, the function fails.\"},\"constructor\":\"Creates a token staking contract for a provided Standard ERC20Burnable token.\",\"eligibleStake(address,address)\":{\"notice\":\"Gets the eligible stake balance of the specified address. An eligible stake is a stake that passed the initialization period and is not currently undelegating. Also, the operator had to approve the specified operator contract.     /// Operator with a minimum required amount of eligible stake can join the network and participate in new work selection. \"},\"getAuthoritySource(address)\":{\"notice\":\"Get the source of the operator contract's authority. If the contract uses delegated authority, returns the original source of the delegated authority. If the contract doesn't use delegated authority, returns the contract itself. Authorize `getAuthoritySource(operatorContract)` to grant `operatorContract` the authority to penalize an operator.\"},\"getDelegationInfo(address)\":{\"notice\":\"Gets stake delegation info for the given operator.\"},\"getLocks(address)\":{\"notice\":\"Get the locks placed on the operator.\"},\"hasMinimumStake(address,address)\":{\"notice\":\"Checks if the specified account has enough active stake to become network operator and that the specified operator contract has been authorized for potential slashing.     /// Having the required minimum of active stake makes the operator eligible to join the network. If the active stake is not currently undelegating, operator is also eligible for work selection. \"},\"isApprovedOperatorContract(address)\":{\"notice\":\"Checks if the operator contract is authorized in the registry. If the contract uses delegated authority it checks authorization of the source contract.\"},\"isAuthorizedForOperator(address,address)\":{\"notice\":\"Checks if operator contract has access to the staked token balance of the provided operator.\"},\"isStakeLocked(address)\":{\"notice\":\"Check whether the operator has any active locks that haven't expired yet and whose creators aren't disabled by the panic button.\"},\"lockStake(address,uint256)\":{\"notice\":\"Locks given operator stake for the specified duration. Locked stake may not be recovered until the lock expires or is released, even if the normal undelegation period has passed. Only previously authorized operator contract can lock the stake.\"},\"minimumStake()\":{\"notice\":\"Returns minimum amount of KEEP that allows sMPC cluster client to participate in the Keep network. Expressed as number with 18-decimal places. Initial minimum stake is higher than the final and lowered periodically based on the amount of steps and the length of the minimum stake schedule in seconds.\"},\"ownerOf(address)\":{\"notice\":\"Gets the stake owner for the specified operator address.\"},\"receiveApproval(address,uint256,address,bytes)\":{\"notice\":\"Receives approval of token transfer and stakes the approved amount or adds the approved amount to an existing delegation (a \\u201ctop-up\\u201d). In case of a top-up, it is expected that the operator stake is not undelegated and that the top-up is performed from the same source of tokens as the initial delegation. That is, if the tokens were delegated from a grant, top-up has to be performed from the same grant. If the delegation was done using liquid tokens, only liquid tokens from the same owner can be used to top-up the stake. Top-up can not be cancelled so it is important to be careful with the amount of KEEP added to the stake.\"},\"recoverStake(address)\":{\"notice\":\"Recovers staked tokens and transfers them back to the owner. Recovering tokens can only be performed when the operator finished undelegating.\"},\"releaseExpiredLock(address,address)\":{\"notice\":\"Removes the lock of the specified operator contract if the lock has expired or the contract has been disabled.\"},\"seize(uint256,uint256,address,address[])\":{\"notice\":\"Seize provided token amount from every member in the misbehaved operators array. The tattletale is rewarded with 5% of the total seized amount scaled by the reward adjustment parameter and the rest 95% is burned.\"},\"slash(uint256,address[])\":{\"notice\":\"Slash provided token amount from every member in the misbehaved operators array and burn 100% of all the tokens.\"},\"transferStakeOwnership(address,address)\":{\"notice\":\"Allows the current staking relationship owner to transfer the ownership to someone else.\"},\"undelegate(address)\":{\"notice\":\"Undelegates staked tokens. You will be able to recover your stake by calling `recoverStake()` with operator address once undelegation period is over.\"},\"undelegateAt(address,uint256)\":{\"notice\":\"Set an undelegation time for staked tokens. Undelegation will begin at the specified timestamp. You will be able to recover your stake by calling `recoverStake()` with operator address once undelegation period is over.\"},\"undelegationPeriod()\":{\"notice\":\"Returns the current value of the undelegation period. The staking contract guarantees that an undelegated operator\\u2019s stakes will stay locked for a period of time after undelegation, and thus available as collateral for any work the operator is engaged in. The undelegation period is two weeks for the first two months and two months after that.\"},\"unlockStake(address)\":{\"notice\":\"Removes a lock the caller had previously placed on the operator.\"}},\"notice\":\"A token staking contract for a specified standard ERC20Burnable token. A holder of the specified token can stake delegate its tokens to this contract and recover the stake after undelegation period is over.\"}},\"settings\":{\"compilationTarget\":{\"project:/contracts/TokenStaking.sol\":\"TokenStaking\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"optimizer\":{\"enabled\":false,\"runs\":200},\"remappings\":[]},\"sources\":{\"openzeppelin-solidity/contracts/GSN/Context.sol\":{\"keccak256\":\"0x90a3995645af7562d84b9d69363ffa5ae7217714ab61e951bf7bc450f40e4061\",\"urls\":[\"bzz-raw://216ef9d6b614db4eb46970b4e84903f2534a45572dd30a79f0041f1a5830f436\",\"dweb:/ipfs/QmNPrJ4MWKUAWzKXpUqeyKRUfosaoANZAqXgvepdrCwZAG\"]},\"openzeppelin-solidity/contracts/math/SafeMath.sol\":{\"keccak256\":\"0x640b6dee7a4b830bdfd52b5031a07fc2b12209f5b2e29e5d364a7d37f69d8076\",\"urls\":[\"bzz-raw://31113152e1ddb78fe7a4197f247591ca894e93f916867beb708d8e747b6cc74f\",\"dweb:/ipfs/QmbZaJyXdpsYGykVhHH9qpVGQg9DGCxE2QufbCUy3daTgq\"]},\"openzeppelin-solidity/contracts/ownership/Ownable.sol\":{\"keccak256\":\"0xecd8ab29d9a5771c3964d0cd1788c4a5098a0081b20fb275da850a22b1c59806\",\"urls\":[\"bzz-raw://696a75bc2c55407ce8251ccc7d19ecb1b7b2be1796a160a6524312babcc7e3d4\",\"dweb:/ipfs/QmQViKEp3y99h9uhRssE29TmjBKRnFMaoz3eJZ4eggggg2\"]},\"openzeppelin-solidity/contracts/token/ERC20/ERC20.sol\":{\"keccak256\":\"0x65a4078c03875c25413a068ce9cfdd7e68a90f8786612d1189c89341e6e3b802\",\"urls\":[\"bzz-raw://45c0d95495b944fbb1aa09d900b0ab530903a432125ab8fddfa05064a7988991\",\"dweb:/ipfs/Qma2VeknkKA1THeubGzshWFk44BktXkXP1UKp9Un2uDSsu\"]},\"openzeppelin-solidity/contracts/token/ERC20/ERC20Burnable.sol\":{\"keccak256\":\"0x9b94356691f3cbf90a5d83ae3fdf6a5a662bb004d2bd8b034160d60221807e64\",\"urls\":[\"bzz-raw://14a9d33db455302b8bb9fdb28998efefbe5a1cb41b29e31391609f646b2ab351\",\"dweb:/ipfs/Qmd4wFr6GEMZnnxgXeq3gmp7cs8tqDuHp3TVNhCbjnux2V\"]},\"openzeppelin-solidity/contracts/token/ERC20/ERC20Detailed.sol\":{\"keccak256\":\"0x4a3a810b7ebe742e897e1fd428b3eeed2196d3acea58eaf9c566ed10d545d2ed\",\"urls\":[\"bzz-raw://28d03f328e19e4099d5013de0649afaeaabac1a614e130767ab1cb4aca9775b6\",\"dweb:/ipfs/Qmb9iW7yNuYehB2NfhRMs9TakqbLVQhBhmGMkaDZ5g1Eb4\"]},\"openzeppelin-solidity/contracts/token/ERC20/IERC20.sol\":{\"keccak256\":\"0xe5bb0f57cff3e299f360052ba50f1ea0fff046df2be070b6943e0e3c3fdad8a9\",\"urls\":[\"bzz-raw://59fd025151435da35faa8093a5c7a17de02de9d08ad27275c5cdf05050820d91\",\"dweb:/ipfs/QmQMvwEcPhoRXzbXyrdoeRtvLoifUW9Qh7Luho7bmUPRkc\"]},\"openzeppelin-solidity/contracts/token/ERC20/SafeERC20.sol\":{\"keccak256\":\"0x6f2c9955d65c522b80f4b8792f076512d2df947d2112cbc4d98a4781ed42ede2\",\"urls\":[\"bzz-raw://7d8ec81683520c06baeef3f7e06cd82bd6fd5fa611f26857f475f6c829540aff\",\"dweb:/ipfs/QmTDkFzKnrpiV1UKnSoiZAHPuguWzokrr4pFbSPvyaSo56\"]},\"openzeppelin-solidity/contracts/utils/Address.sol\":{\"keccak256\":\"0x70df50e240407aa50915ad14f61b1a901fa335b37de20955b99ed647be756af0\",\"urls\":[\"bzz-raw://9404711f3206610c08ea97fa52c7b6b4d2e9d536e96fc4b7210aa7e24f796c36\",\"dweb:/ipfs/QmZDzpVzjoap13SuPEq5pVCrmdjoKVZnTsQPLKXAbynTTW\"]},\"project:/contracts/Authorizations.sol\":{\"keccak256\":\"0x340bb3d18b59fde20dce41ecd5128d891f871a274f8384a89f14754cd293c3cf\",\"urls\":[\"bzz-raw://b9084255d117f6f6307247a0bebc87387a2e5c7a7eec420ff976736ab9417af4\",\"dweb:/ipfs/QmZ7tx4ued84cXNmi7mmvaEAhcpNCWeisiivnbM4aSHeFw\"]},\"project:/contracts/GrantStakingPolicy.sol\":{\"keccak256\":\"0x433e1f5c70af09ca1b9fac5e602be3ffec7e8e50b34b07f5141bd14e8cca0674\",\"urls\":[\"bzz-raw://d0b4ad0aa3c174856ca32c3ffd7685141873b9549f941894cca8118b5ae99275\",\"dweb:/ipfs/QmdMA1csXSSQHmnsSQs2tmeDJ6zdoKdyD2EneKJfM9VtRj\"]},\"project:/contracts/KeepRegistry.sol\":{\"keccak256\":\"0xbc0e44a838bae38c1d11db28b5bfcfdfd79394d423ce6fd85dcb90a6420e1f10\",\"urls\":[\"bzz-raw://74b140b3a4547cc742785c613e2927bc3592e71f0f42eff5112462a9985083cb\",\"dweb:/ipfs/QmQLsNVWAcgHhtoJAfiXjipYaksfLpcoaa45c2LvRh9hfg\"]},\"project:/contracts/KeepToken.sol\":{\"keccak256\":\"0x42abcd9c9c67d8d83b91a01e42abde3355b3a67fb7c510d7d8b63b5e23d3defe\",\"urls\":[\"bzz-raw://ef26e4ad4042c74e230a343f9e69c2d142b581e4a2c7ee27ec51a1f7e9f91a68\",\"dweb:/ipfs/QmfJ9cEpzj2WQ5upvizC16pthvC2vQP8geFeUATFb4ov2G\"]},\"project:/contracts/ManagedGrant.sol\":{\"keccak256\":\"0x3f0f6e2107f6154a619b02dbc694c9e3341005dd0879a10e7f105d2a540a1158\",\"urls\":[\"bzz-raw://f6559e8ad8bea87d1d7a1f333935c8e42d7979e2de47f1a34a7cb7121f35f021\",\"dweb:/ipfs/QmSKdVqS9AiEQ2UjtpPGnz3UBgaVA6enGadZHjqsxaSnHj\"]},\"project:/contracts/StakeDelegatable.sol\":{\"keccak256\":\"0x328b20a9f89222294dd8aaff19097bcbe427e211f7e8006ffb107d5813ce7522\",\"urls\":[\"bzz-raw://65316b2733aa23fac341170a9d668a78ddef663d59c7fa6aa68ad4b1c98c3e03\",\"dweb:/ipfs/QmShjVArh35v93n5erjbZMxHnBcctNS3tkgd1jRqTNWaEA\"]},\"project:/contracts/TokenGrant.sol\":{\"keccak256\":\"0x8aa80561282a5e4eeb3de864e7d3425314f45442c7aa8af3ba8991f13de8f3fe\",\"urls\":[\"bzz-raw://e7d993377146c0fa2b494cbb03120e781d5b50f08866b542bcb483f2bf7f607e\",\"dweb:/ipfs/QmR4MWgYhyZRhQZfgqEL2yd2FebgLx9Nabr9mGwRU5hzPz\"]},\"project:/contracts/TokenGrantStake.sol\":{\"keccak256\":\"0x55f16cd0566659da7db27f136f13db4d5b9be5d970ae481caf50ae1066339758\",\"urls\":[\"bzz-raw://289afc90c055062a781434e4a15adec36e22a85caf6a0f923d44dbdccab3abad\",\"dweb:/ipfs/Qme5dAkEGG5gkydFsCAKURU7a4PGKwwEL4iutBpoJyEqFX\"]},\"project:/contracts/TokenSender.sol\":{\"keccak256\":\"0xd2209f6cb3122bf4b6367ff80dcd24a108885e37fd86a87d127467c5782ae12f\",\"urls\":[\"bzz-raw://c0496338c50a4e29eea1702780b7887418f5df4a251c3512308f109187a20d71\",\"dweb:/ipfs/QmP6seRmXzSf59g8iAFEvbwmtcQyU4x8H523auAM9KhujG\"]},\"project:/contracts/TokenStaking.sol\":{\"keccak256\":\"0x285142cb59dea7e8ed3291eee412e49522bab77108805e24cadbf7bc4cac5966\",\"urls\":[\"bzz-raw://e046efc9d63d925b77d01be60d7f75b755ab1dc2c84c44a17198dc748debef6f\",\"dweb:/ipfs/QmNc2X9Cby4T1LzHCELKhfS6qe33wgXgLzWzssGyDGJ99R\"]},\"project:/contracts/TokenStakingEscrow.sol\":{\"keccak256\":\"0x046fc3b328b1b9ecb8a85b595dcdc5a1519ffcf1c49e72d8ffab675b29fa7ef6\",\"urls\":[\"bzz-raw://36c5ea56265974bcf13ecb6cf7425169f71d287754436ecbea6f1ef8344dfe3e\",\"dweb:/ipfs/QmVkeiBXzEMpPuGoer9n2JWoxV7DHjkVPfYsF5Nh4uPqTM\"]},\"project:/contracts/libraries/RolesLookup.sol\":{\"keccak256\":\"0x3f5750a8cf219f35fc5d2233c4db2812083f8e53949b315b44ad342c70bec4c7\",\"urls\":[\"bzz-raw://47a0350004b4fc99bf22c07684129665111512603fd167bd87da91bd027a87b7\",\"dweb:/ipfs/Qmd6EfqiMrg4xbrQcs1Zk6aZ4YW1d1egfrXfr45HVUoXaR\"]},\"project:/contracts/libraries/grant/UnlockingSchedule.sol\":{\"keccak256\":\"0xf1704afe7ae23810b02ec5f64a752a2217dcc6a03d0be6422372a3b106156e69\",\"urls\":[\"bzz-raw://4792dee0044b1748d80e083387911f417e0367001a5aa649b7e59a2e7507a8d5\",\"dweb:/ipfs/QmWNgFNmFUiRQvKCEiyJed8wCF8GzmMw315GrhPGsMWetw\"]},\"project:/contracts/libraries/staking/GrantStaking.sol\":{\"keccak256\":\"0x281e5716582e26b3c4ee63aad71f130c2b9b40be94a337826872b45daf4c0afe\",\"urls\":[\"bzz-raw://4e17a1ca3b362f303bdc09205db719e8e49b5a49e17ac576a0ab310f07fa63b6\",\"dweb:/ipfs/QmcvQHF1mUuMiwfBM3op55zmYuJCpffCU3yT7pUax7yjyh\"]},\"project:/contracts/libraries/staking/LockUtils.sol\":{\"keccak256\":\"0x8bde6802329174c60343acdb2ac9914a05a7bc7c1c0ce4e981d3f797f6190dab\",\"urls\":[\"bzz-raw://1c847315d4a132e7363b3eba918ea7e44921a65e82580e61885400d921cbd8d3\",\"dweb:/ipfs/Qmdg7ECyE3r4Q1n3fQWFtBJvMDMj6kvzKQMpPCGfQFwNnP\"]},\"project:/contracts/libraries/staking/Locks.sol\":{\"keccak256\":\"0x60c93b4a1964e06087ddb6ebd6e20b80728e24cc24956a952eb7d1267be45fe0\",\"urls\":[\"bzz-raw://912540915aaa83a10be70b22b9f67197e63df48fcb60a4c92819da628a1844e5\",\"dweb:/ipfs/QmeYjotXEQruDqZCxh7tUhfLM34Bvq6n2gbGVsd7aaQbaG\"]},\"project:/contracts/libraries/staking/MinimumStakeSchedule.sol\":{\"keccak256\":\"0xf99053f84873f54d036ebffac7245aa899227ef3673ed1b9dc86bde6add76fbf\",\"urls\":[\"bzz-raw://1f8bc44e7058fbbc9410495651dce3b358834022ae0fd2c66824e404cbbe0b17\",\"dweb:/ipfs/QmV3csHqadQ5gdQiFRUSP64t8a11q8Znbr8Szstm7hiN1G\"]},\"project:/contracts/libraries/staking/TopUps.sol\":{\"keccak256\":\"0x2454e61ed5f91ec7d086cc5555ce50e5b402cb3a96e19480840ceb51ea5c6a00\",\"urls\":[\"bzz-raw://37e118f637389cefb040c241c3af268b4a9847ac86ca455c6fa59effd2925ad7\",\"dweb:/ipfs/QmdWwcDwXpREsx15mGqMmu9z64gqAbvaY1PN1j6mG578XR\"]},\"project:/contracts/utils/AddressArrayUtils.sol\":{\"keccak256\":\"0x4f05678830599afa325ec43ac007f6a17e66037a66d258cb46294bfcf4572dcd\",\"urls\":[\"bzz-raw://1704df5b46bb2868337bfaaf6472eba5466b60d1963495c0683cb4b062e1565f\",\"dweb:/ipfs/QmVVN4uF8dzGsGYAvtqJF3Ut8Ssfmx4LGGhksT1Gr3JV4i\"]},\"project:/contracts/utils/BytesLib.sol\":{\"keccak256\":\"0xad3f2453f490e1f74fcb3c278f82e26e75f074eaeaa023168c687d96f0b35b9d\",\"urls\":[\"bzz-raw://001f36244a08a9f306415c25b0812bd0a37389e878fbad3a682d59301d9da0c8\",\"dweb:/ipfs/QmXurBXY19xmJKL6ABDqwn6BKwuBgW2qxiM6V58EHB5s3s\"]},\"project:/contracts/utils/OperatorParams.sol\":{\"keccak256\":\"0xba9b216c249d6c30081b23ec0322104ce729b9c51adc8fd8c80a38dba09461b0\",\"urls\":[\"bzz-raw://a8602b066c13018255a685a77aa637eb91305d30f856a20efd3bd9d1dbcffed2\",\"dweb:/ipfs/QmRYxLLEgN5p2MLp29DGYFq3J3BYhV2RiZC2dahVgkcmfD\"]},\"project:/contracts/utils/PercentUtils.sol\":{\"keccak256\":\"0x696b15997a739e6c47c5bc29e1f9023998bb188405221a6b337377bca4ab3f68\",\"urls\":[\"bzz-raw://e93e2287fe6b6e1c5cc45ebc92b9d682e19a5b1302e00cb037391da753282bbf\",\"dweb:/ipfs/QmRXmEopRWNaL7mvY5nTyNNob3EPHF67R6Nxhm3F4VsDoo\"]}},\"version\":1}",
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-  "source": "/**\n▓▓▌ ▓▓ ▐▓▓ ▓▓▓▓▓▓▓▓▓▓▌▐▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓ ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓ ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▄\n▓▓▓▓▓▓▓▓▓▓ ▓▓▓▓▓▓▓▓▓▓▌▐▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓ ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓ ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓\n  ▓▓▓▓▓▓    ▓▓▓▓▓▓▓▀    ▐▓▓▓▓▓▓    ▐▓▓▓▓▓   ▓▓▓▓▓▓     ▓▓▓▓▓   ▐▓▓▓▓▓▌   ▐▓▓▓▓▓▓\n  ▓▓▓▓▓▓▄▄▓▓▓▓▓▓▓▀      ▐▓▓▓▓▓▓▄▄▄▄         ▓▓▓▓▓▓▄▄▄▄         ▐▓▓▓▓▓▌   ▐▓▓▓▓▓▓\n  ▓▓▓▓▓▓▓▓▓▓▓▓▓▀        ▐▓▓▓▓▓▓▓▓▓▓         ▓▓▓▓▓▓▓▓▓▓▌        ▐▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓\n  ▓▓▓▓▓▓▀▀▓▓▓▓▓▓▄       ▐▓▓▓▓▓▓▀▀▀▀         ▓▓▓▓▓▓▀▀▀▀         ▐▓▓▓▓▓▓▓▓▓▓▓▓▓▓▀\n  ▓▓▓▓▓▓   ▀▓▓▓▓▓▓▄     ▐▓▓▓▓▓▓     ▓▓▓▓▓   ▓▓▓▓▓▓     ▓▓▓▓▓   ▐▓▓▓▓▓▌\n▓▓▓▓▓▓▓▓▓▓ █▓▓▓▓▓▓▓▓▓ ▐▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓ ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓  ▓▓▓▓▓▓▓▓▓▓\n▓▓▓▓▓▓▓▓▓▓ ▓▓▓▓▓▓▓▓▓▓ ▐▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓ ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓  ▓▓▓▓▓▓▓▓▓▓\n\n                           Trust math, not hardware.\n*/\n\npragma solidity 0.5.17;\n\nimport \"openzeppelin-solidity/contracts/token/ERC20/ERC20Burnable.sol\";\nimport \"openzeppelin-solidity/contracts/token/ERC20/SafeERC20.sol\";\nimport \"openzeppelin-solidity/contracts/math/SafeMath.sol\";\nimport \"./StakeDelegatable.sol\";\nimport \"./libraries/staking/MinimumStakeSchedule.sol\";\nimport \"./libraries/staking/GrantStaking.sol\";\nimport \"./libraries/staking/Locks.sol\";\nimport \"./libraries/staking/TopUps.sol\";\nimport \"./utils/PercentUtils.sol\";\nimport \"./utils/BytesLib.sol\";\nimport \"./Authorizations.sol\";\nimport \"./TokenStakingEscrow.sol\";\nimport \"./TokenSender.sol\";\n\n/// @title TokenStaking\n/// @notice A token staking contract for a specified standard ERC20Burnable token.\n/// A holder of the specified token can stake delegate its tokens to this contract\n/// and recover the stake after undelegation period is over.\ncontract TokenStaking is Authorizations, StakeDelegatable {\n    using BytesLib for bytes;\n    using SafeMath for uint256;\n    using PercentUtils for uint256;\n    using SafeERC20 for ERC20Burnable;\n    using GrantStaking for GrantStaking.Storage;\n    using Locks for Locks.Storage;\n    using TopUps for TopUps.Storage;\n\n    event StakeDelegated(address indexed owner, address indexed operator);\n    event OperatorStaked(\n        address indexed operator,\n        address indexed beneficiary,\n        address indexed authorizer,\n        uint256 value\n    );\n    event StakeOwnershipTransferred(\n        address indexed operator,\n        address indexed newOwner\n    );\n    event TopUpInitiated(address indexed operator, uint256 topUp);\n    event TopUpCompleted(address indexed operator, uint256 newAmount);\n    event Undelegated(address indexed operator, uint256 undelegatedAt);\n    event RecoveredStake(address operator);\n    event TokensSlashed(address indexed operator, uint256 amount);\n    event TokensSeized(address indexed operator, uint256 amount);\n    event StakeLocked(\n        address indexed operator,\n        address lockCreator,\n        uint256 until\n    );\n    event LockReleased(address indexed operator, address lockCreator);\n    event ExpiredLockReleased(address indexed operator, address lockCreator);\n\n    uint256 public deployedAt;\n    uint256 public initializationPeriod; // varies between mainnet and testnet\n\n    ERC20Burnable internal token;\n    TokenGrant internal tokenGrant;\n    TokenStakingEscrow internal escrow;\n\n    GrantStaking.Storage internal grantStaking;\n    Locks.Storage internal locks;\n    TopUps.Storage internal topUps;\n\n    uint256 internal constant twoWeeks = 1209600; // [sec]\n    uint256 internal constant twoMonths = 5184000; // [sec]\n\n    // 2020-04-28; the date of deploying KEEP token.\n    // TX:  0xea22d72bc7de4c82798df7194734024a1f2fd57b173d0e065864ff4e9d3dc014\n    uint256 internal constant minimumStakeScheduleStart = 1588042366;\n\n    /// @notice Creates a token staking contract for a provided Standard ERC20Burnable token.\n    /// @param _token KEEP token contract.\n    /// @param _tokenGrant KEEP token grant contract.\n    /// @param _escrow Escrow dedicated for this staking contract.\n    /// @param _registry Keep contract registry contract.\n    /// @param _initializationPeriod To avoid certain attacks on work selection, recently created\n    /// operators must wait for a specific period of time before being eligible for work selection.\n    constructor(\n        ERC20Burnable _token,\n        TokenGrant _tokenGrant,\n        TokenStakingEscrow _escrow,\n        KeepRegistry _registry,\n        uint256 _initializationPeriod\n    ) public Authorizations(_registry) {\n        token = _token;\n        tokenGrant = _tokenGrant;\n        escrow = _escrow;\n        registry = _registry;\n        initializationPeriod = _initializationPeriod;\n        deployedAt = block.timestamp;\n    }\n\n    /// @notice Returns minimum amount of KEEP that allows sMPC cluster client to\n    /// participate in the Keep network. Expressed as number with 18-decimal places.\n    /// Initial minimum stake is higher than the final and lowered periodically based\n    /// on the amount of steps and the length of the minimum stake schedule in seconds.\n    function minimumStake() public view returns (uint256) {\n        return MinimumStakeSchedule.current(minimumStakeScheduleStart);\n    }\n\n    /// @notice Returns the current value of the undelegation period.\n    /// The staking contract guarantees that an undelegated operator’s stakes\n    /// will stay locked for a period of time after undelegation, and thus\n    /// available as collateral for any work the operator is engaged in.\n    /// The undelegation period is two weeks for the first two months and\n    /// two months after that.\n    function undelegationPeriod() public view returns (uint256) {\n        return\n            block.timestamp < deployedAt.add(twoMonths) ? twoWeeks : twoMonths;\n    }\n\n    /// @notice Receives approval of token transfer and stakes the approved\n    /// amount or adds the approved amount to an existing delegation (a “top-up”).\n    /// In case of a top-up, it is expected that the operator stake is not\n    /// undelegated and that the top-up is performed from the same source of\n    /// tokens as the initial delegation. That is, if the tokens were delegated\n    /// from a grant, top-up has to be performed from the same grant. If the\n    /// delegation was done using liquid tokens, only liquid tokens from the\n    /// same owner can be used to top-up the stake.\n    /// Top-up can not be cancelled so it is important to be careful with the\n    /// amount of KEEP added to the stake.\n    /// @dev Requires that the provided token contract be the same one linked to\n    /// this contract.\n    /// @param _from The owner of the tokens who approved them to transfer.\n    /// @param _value Approved amount for the transfer and stake.\n    /// @param _token Token contract address.\n    /// @param _extraData Data for stake delegation. This byte array must have\n    /// the following values concatenated:\n    /// - Beneficiary address (20 bytes), ignored for a top-up\n    /// - Operator address (20 bytes)\n    /// - Authorizer address (20 bytes), ignored for a top-up\n    /// - Grant ID (32 bytes) - required only when called by TokenStakingEscrow\n    function receiveApproval(\n        address _from,\n        uint256 _value,\n        address _token,\n        bytes memory _extraData\n    ) public {\n        require(ERC20Burnable(_token) == token, \"Unrecognized token\");\n        require(_extraData.length >= 60, \"Corrupted delegation data\");\n\n        // Transfer tokens to this contract.\n        token.safeTransferFrom(_from, address(this), _value);\n\n        address operator = _extraData.toAddress(20);\n        // See if there is an existing delegation for this operator...\n        if (operators[operator].packedParams.getCreationTimestamp() == 0) {\n            // If there is no existing delegation, delegate tokens using\n            // beneficiary and authorizer passed in _extraData.\n            delegate(_from, _value, operator, _extraData);\n        } else {\n            // If there is an existing delegation, top-up the stake.\n            topUp(_from, _value, operator, _extraData);\n        }\n    }\n\n    /// @notice Commits pending top-up for the provided operator. If the top-up\n    /// did not pass the initialization period, the function fails.\n    /// @param _operator The operator with a pending top-up that is getting\n    /// committed.\n    function commitTopUp(address _operator) public {\n        operators[_operator].packedParams = topUps.commit(\n            _operator,\n            operators[_operator].packedParams,\n            initializationPeriod\n        );\n    }\n\n    /// @notice Cancels stake of tokens within the operator initialization period\n    /// without being subjected to the token lockup for the undelegation period.\n    /// This can be used to undo mistaken delegation to the wrong operator address.\n    /// @param _operator Address of the stake operator.\n    function cancelStake(address _operator) public {\n        address owner = operators[_operator].owner;\n        require(\n            msg.sender == owner ||\n                msg.sender == _operator ||\n                grantStaking.canUndelegate(_operator, tokenGrant),\n            \"Not authorized\"\n        );\n        uint256 operatorParams = operators[_operator].packedParams;\n\n        require(!_isInitialized(operatorParams), \"Initialized stake\");\n\n        uint256 amount = operatorParams.getAmount();\n        operators[_operator].packedParams = operatorParams.setAmount(0);\n\n        transferOrDeposit(owner, _operator, amount);\n    }\n\n    /// @notice Undelegates staked tokens. You will be able to recover your stake by calling\n    /// `recoverStake()` with operator address once undelegation period is over.\n    /// @param _operator Address of the stake operator.\n    function undelegate(address _operator) public {\n        undelegateAt(_operator, block.timestamp);\n    }\n\n    /// @notice Set an undelegation time for staked tokens.\n    /// Undelegation will begin at the specified timestamp.\n    /// You will be able to recover your stake by calling\n    /// `recoverStake()` with operator address once undelegation period is over.\n    /// @param _operator Address of the stake operator.\n    /// @param _undelegationTimestamp The timestamp undelegation is to start at.\n    function undelegateAt(address _operator, uint256 _undelegationTimestamp)\n        public\n    {\n        require(\n            msg.sender == _operator ||\n                msg.sender == operators[_operator].owner ||\n                grantStaking.canUndelegate(_operator, tokenGrant),\n            \"Not authorized\"\n        );\n        uint256 oldParams = operators[_operator].packedParams;\n        require(\n            _undelegationTimestamp >= block.timestamp &&\n                _undelegationTimestamp >\n                oldParams.getCreationTimestamp().add(initializationPeriod),\n            \"Invalid timestamp\"\n        );\n        uint256 existingUndelegationTimestamp =\n            oldParams.getUndelegationTimestamp();\n        require(\n            // Undelegation not in progress OR\n            existingUndelegationTimestamp == 0 ||\n                // Undelegating sooner than previously set time OR\n                existingUndelegationTimestamp > _undelegationTimestamp ||\n                // We have already checked above that msg.sender is owner, grantee,\n                // or operator. Only owner and grantee are eligible to postpone the\n                // delegation so it is enough if we exclude operator here.\n                msg.sender != _operator,\n            \"Operator may not postpone\"\n        );\n        operators[_operator].packedParams = oldParams.setUndelegationTimestamp(\n            _undelegationTimestamp\n        );\n        emit Undelegated(_operator, _undelegationTimestamp);\n    }\n\n    /// @notice Recovers staked tokens and transfers them back to the owner.\n    /// Recovering tokens can only be performed when the operator finished\n    /// undelegating.\n    /// @param _operator Operator address.\n    function recoverStake(address _operator) public {\n        uint256 operatorParams = operators[_operator].packedParams;\n        require(\n            operatorParams.getUndelegationTimestamp() != 0,\n            \"Not undelegated\"\n        );\n        require(_isUndelegatingFinished(operatorParams), \"Still undelegating\");\n        require(!isStakeLocked(_operator), \"Locked stake\");\n\n        uint256 amount = operatorParams.getAmount();\n\n        // If there is a pending top-up, force-commit it before returning tokens.\n        amount = amount.add(topUps.cancel(_operator));\n\n        operators[_operator].packedParams = operatorParams.setAmount(0);\n        transferOrDeposit(operators[_operator].owner, _operator, amount);\n\n        emit RecoveredStake(_operator);\n    }\n\n    /// @notice Gets stake delegation info for the given operator.\n    /// @param _operator Operator address.\n    /// @return amount The amount of tokens the given operator delegated.\n    /// @return createdAt The time when the stake has been delegated.\n    /// @return undelegatedAt The time when undelegation has been requested.\n    /// If undelegation has not been requested, 0 is returned.\n    function getDelegationInfo(address _operator)\n        public\n        view\n        returns (\n            uint256 amount,\n            uint256 createdAt,\n            uint256 undelegatedAt\n        )\n    {\n        return operators[_operator].packedParams.unpack();\n    }\n\n    /// @notice Locks given operator stake for the specified duration.\n    /// Locked stake may not be recovered until the lock expires or is released,\n    /// even if the normal undelegation period has passed.\n    /// Only previously authorized operator contract can lock the stake.\n    /// @param operator Operator address.\n    /// @param duration Lock duration in seconds.\n    function lockStake(address operator, uint256 duration)\n        public\n        onlyApprovedOperatorContract(msg.sender)\n    {\n        require(\n            isAuthorizedForOperator(operator, msg.sender),\n            \"Not authorized\"\n        );\n\n        uint256 operatorParams = operators[operator].packedParams;\n\n        require(_isInitialized(operatorParams), \"Inactive stake\");\n        require(!_isUndelegating(operatorParams), \"Undelegating stake\");\n\n        locks.lockStake(operator, duration);\n    }\n\n    /// @notice Removes a lock the caller had previously placed on the operator.\n    /// @dev Only for operator contracts.\n    /// To remove expired or disabled locks, use `releaseExpiredLocks`.\n    /// The authorization check ensures that the caller must have been able\n    /// to place a lock on the operator sometime in the past.\n    /// We don't need to check for current approval status of the caller\n    /// because unlocking stake cannot harm the operator\n    /// nor interfere with other operator contracts.\n    /// Therefore even disabled operator contracts may freely unlock stake.\n    /// @param operator Operator address.\n    function unlockStake(address operator) public {\n        require(\n            isAuthorizedForOperator(operator, msg.sender),\n            \"Not authorized\"\n        );\n        locks.releaseLock(operator);\n    }\n\n    /// @notice Removes the lock of the specified operator contract\n    /// if the lock has expired or the contract has been disabled.\n    /// @dev Necessary for removing locks placed by contracts\n    /// that have been disabled by the panic button.\n    /// Also applicable to prevent inadvertent DoS of `recoverStake`\n    /// if too many operator contracts have failed to clean up their locks.\n    function releaseExpiredLock(address operator, address operatorContract)\n        public\n    {\n        locks.releaseExpiredLock(operator, operatorContract, address(this));\n    }\n\n    /// @notice Check whether the operator has any active locks\n    /// that haven't expired yet\n    /// and whose creators aren't disabled by the panic button.\n    function isStakeLocked(address operator) public view returns (bool) {\n        return locks.isStakeLocked(operator, address(this));\n    }\n\n    /// @notice Get the locks placed on the operator.\n    /// @return creators The addresses of operator contracts\n    /// that have placed a lock on the operator.\n    /// @return expirations The expiration times\n    /// of the locks placed on the operator.\n    function getLocks(address operator)\n        public\n        view\n        returns (address[] memory creators, uint256[] memory expirations)\n    {\n        return locks.getLocks(operator);\n    }\n\n    /// @notice Slash provided token amount from every member in the misbehaved\n    /// operators array and burn 100% of all the tokens.\n    /// @param amountToSlash Token amount to slash from every misbehaved operator.\n    /// @param misbehavedOperators Array of addresses to seize the tokens from.\n    function slash(uint256 amountToSlash, address[] memory misbehavedOperators)\n        public\n        onlyApprovedOperatorContract(msg.sender)\n    {\n        uint256 totalAmountToBurn;\n        address authoritySource = getAuthoritySource(msg.sender);\n        for (uint256 i = 0; i < misbehavedOperators.length; i++) {\n            address operator = misbehavedOperators[i];\n            require(\n                authorizations[authoritySource][operator],\n                \"Not authorized\"\n            );\n\n            uint256 operatorParams = operators[operator].packedParams;\n            require(_isInitialized(operatorParams), \"Inactive stake\");\n\n            require(\n                !_isStakeReleased(operator, operatorParams, msg.sender),\n                \"Stake is released\"\n            );\n\n            uint256 currentAmount = operatorParams.getAmount();\n\n            if (currentAmount < amountToSlash) {\n                totalAmountToBurn = totalAmountToBurn.add(currentAmount);\n                operators[operator].packedParams = operatorParams.setAmount(0);\n                emit TokensSlashed(operator, currentAmount);\n            } else {\n                totalAmountToBurn = totalAmountToBurn.add(amountToSlash);\n                operators[operator].packedParams = operatorParams.setAmount(\n                    currentAmount.sub(amountToSlash)\n                );\n                emit TokensSlashed(operator, amountToSlash);\n            }\n        }\n\n        token.burn(totalAmountToBurn);\n    }\n\n    /// @notice Seize provided token amount from every member in the misbehaved\n    /// operators array. The tattletale is rewarded with 5% of the total seized\n    /// amount scaled by the reward adjustment parameter and the rest 95% is burned.\n    /// @param amountToSeize Token amount to seize from every misbehaved operator.\n    /// @param rewardMultiplier Reward adjustment in percentage. Min 1% and 100% max.\n    /// @param tattletale Address to receive the 5% reward.\n    /// @param misbehavedOperators Array of addresses to seize the tokens from.\n    function seize(\n        uint256 amountToSeize,\n        uint256 rewardMultiplier,\n        address tattletale,\n        address[] memory misbehavedOperators\n    ) public onlyApprovedOperatorContract(msg.sender) {\n        uint256 totalAmountToBurn;\n        address authoritySource = getAuthoritySource(msg.sender);\n        for (uint256 i = 0; i < misbehavedOperators.length; i++) {\n            address operator = misbehavedOperators[i];\n            require(\n                authorizations[authoritySource][operator],\n                \"Not authorized\"\n            );\n\n            uint256 operatorParams = operators[operator].packedParams;\n            require(_isInitialized(operatorParams), \"Inactive stake\");\n\n            require(\n                !_isStakeReleased(operator, operatorParams, msg.sender),\n                \"Stake is released\"\n            );\n\n            uint256 currentAmount = operatorParams.getAmount();\n\n            if (currentAmount < amountToSeize) {\n                totalAmountToBurn = totalAmountToBurn.add(currentAmount);\n                operators[operator].packedParams = operatorParams.setAmount(0);\n                emit TokensSeized(operator, currentAmount);\n            } else {\n                totalAmountToBurn = totalAmountToBurn.add(amountToSeize);\n                operators[operator].packedParams = operatorParams.setAmount(\n                    currentAmount.sub(amountToSeize)\n                );\n                emit TokensSeized(operator, amountToSeize);\n            }\n        }\n\n        uint256 tattletaleReward =\n            (totalAmountToBurn.percent(5)).percent(rewardMultiplier);\n\n        token.safeTransfer(tattletale, tattletaleReward);\n        token.burn(totalAmountToBurn.sub(tattletaleReward));\n    }\n\n    /// @notice Allows the current staking relationship owner to transfer the\n    /// ownership to someone else.\n    /// @param operator Address of the stake operator.\n    /// @param newOwner Address of the new staking relationship owner.\n    function transferStakeOwnership(address operator, address newOwner) public {\n        require(msg.sender == operators[operator].owner, \"Not authorized\");\n        operators[operator].owner = newOwner;\n        emit StakeOwnershipTransferred(operator, newOwner);\n    }\n\n    /// @notice Gets the eligible stake balance of the specified address.\n    /// An eligible stake is a stake that passed the initialization period\n    /// and is not currently undelegating. Also, the operator had to approve\n    /// the specified operator contract.\n    ///\n    /// Operator with a minimum required amount of eligible stake can join the\n    /// network and participate in new work selection.\n    ///\n    /// @param _operator address of stake operator.\n    /// @param _operatorContract address of operator contract.\n    /// @return an uint256 representing the eligible stake balance.\n    function eligibleStake(address _operator, address _operatorContract)\n        public\n        view\n        returns (uint256 balance)\n    {\n        uint256 operatorParams = operators[_operator].packedParams;\n        // To be eligible for work selection, the operator must:\n        // - have the operator contract authorized\n        // - have the stake initialized\n        // - must not be undelegating; keep in mind the `undelegatedAt` may be\n        // set to a time in the future, to schedule undelegation in advance.\n        // In this case the operator is still eligible until the timestamp\n        // `undelegatedAt`.\n        if (\n            isAuthorizedForOperator(_operator, _operatorContract) &&\n            _isInitialized(operatorParams) &&\n            !_isUndelegating(operatorParams)\n        ) {\n            balance = operatorParams.getAmount();\n        }\n    }\n\n    /// @notice Gets the active stake balance of the specified address.\n    /// An active stake is a stake that passed the initialization period,\n    /// and may be in the process of undelegation\n    /// but has not been released yet,\n    /// either because the undelegation period is not over,\n    /// or because the operator contract has an active lock on the operator.\n    /// Also, the operator had to approve the specified operator contract.\n    ///\n    /// The difference between eligible stake is that active stake does not make\n    /// the operator eligible for work selection but it may be still finishing\n    /// earlier work until the stake is released.\n    /// Operator with a minimum required\n    /// amount of active stake can join the network but cannot be selected to any\n    /// new work.\n    ///\n    /// @param _operator address of stake operator.\n    /// @param _operatorContract address of operator contract.\n    /// @return an uint256 representing the eligible stake balance.\n    function activeStake(address _operator, address _operatorContract)\n        public\n        view\n        returns (uint256 balance)\n    {\n        uint256 operatorParams = operators[_operator].packedParams;\n        if (\n            isAuthorizedForOperator(_operator, _operatorContract) &&\n            _isInitialized(operatorParams) &&\n            !_isStakeReleased(_operator, operatorParams, _operatorContract)\n        ) {\n            balance = operatorParams.getAmount();\n        }\n    }\n\n    /// @notice Checks if the specified account has enough active stake to become\n    /// network operator and that the specified operator contract has been\n    /// authorized for potential slashing.\n    ///\n    /// Having the required minimum of active stake makes the operator eligible\n    /// to join the network. If the active stake is not currently undelegating,\n    /// operator is also eligible for work selection.\n    ///\n    /// @param staker Staker's address\n    /// @param operatorContract Operator contract's address\n    /// @return True if has enough active stake to participate in the network,\n    /// false otherwise.\n    function hasMinimumStake(address staker, address operatorContract)\n        public\n        view\n        returns (bool)\n    {\n        return activeStake(staker, operatorContract) >= minimumStake();\n    }\n\n    /// @notice Delegates tokens to a new operator using beneficiary and\n    /// authorizer passed in _extraData parameter.\n    /// @param _from The owner of the tokens who approved them to transfer.\n    /// @param _value Approved amount for the transfer and stake.\n    /// @param _operator The new operator address.\n    /// @param _extraData Data for stake delegation as passed to receiveApproval.\n    function delegate(\n        address _from,\n        uint256 _value,\n        address _operator,\n        bytes memory _extraData\n    ) internal {\n        require(_value >= minimumStake(), \"Less than the minimum stake\");\n\n        address payable beneficiary = address(uint160(_extraData.toAddress(0)));\n        address authorizer = _extraData.toAddress(40);\n\n        operators[_operator] = Operator(\n            OperatorParams.pack(_value, block.timestamp, 0),\n            _from,\n            beneficiary,\n            authorizer\n        );\n\n        grantStaking.tryCapturingDelegationData(\n            tokenGrant,\n            address(escrow),\n            _from,\n            _operator,\n            _extraData\n        );\n\n        emit StakeDelegated(_from, _operator);\n        emit OperatorStaked(_operator, beneficiary, authorizer, _value);\n    }\n\n    /// @notice Performs top-up to an existing operator. Tokens added during\n    /// stake initialization period are immediatelly added to the stake and\n    /// stake initialization timer is reset to the current block. Tokens added\n    /// in a top-up after the stake initialization period is over are not\n    /// included in the operator stake until the initialization period for\n    /// a top-up passes and top-up is committed. Operator must not have the stake\n    /// undelegated. It is expected that the top-up is done from the same source\n    /// of tokens as the initial delegation. That is, if the tokens were\n    /// delegated from a grant, top-up has to be performed from the same grant.\n    /// If the delegation was done using liquid tokens, only liquid tokens from\n    /// the same owner can be used to top-up the stake.\n    /// Top-up can not be cancelled so it is important to be careful with the\n    /// amount of KEEP added to the stake.\n    /// @param _from The owner of the tokens who approved them to transfer.\n    /// @param _value Approved amount for the transfer and top-up to\n    /// an existing stake.\n    /// @param _operator The new operator address.\n    /// @param _extraData Data for stake delegation as passed to receiveApproval\n    function topUp(\n        address _from,\n        uint256 _value,\n        address _operator,\n        bytes memory _extraData\n    ) internal {\n        // Top-up comes from a grant if it's been initiated from TokenGrantStake\n        // contract or if it's been initiated from TokenStakingEscrow by\n        // redelegation.\n        bool isFromGrant =\n            address(tokenGrant.grantStakes(_operator)) == _from ||\n                address(escrow) == _from;\n\n        if (grantStaking.hasGrantDelegated(_operator)) {\n            // Operator has grant delegated. We need to see if the top-up\n            // is performed also from a grant.\n            require(isFromGrant, \"Must be from a grant\");\n            // If it is from a grant, we need to make sure it's from the same\n            // grant as the original delegation. We do not want to mix unlocking\n            // schedules.\n            uint256 previousGrantId =\n                grantStaking.getGrantForOperator(_operator);\n            (, uint256 grantId) =\n                grantStaking.tryCapturingDelegationData(\n                    tokenGrant,\n                    address(escrow),\n                    _from,\n                    _operator,\n                    _extraData\n                );\n            require(grantId == previousGrantId, \"Not the same grant\");\n        } else {\n            // Operator has no grant delegated. We need to see if the top-up\n            // is performed from liquid tokens of the same owner.\n            require(!isFromGrant, \"Must not be from a grant\");\n            require(operators[_operator].owner == _from, \"Not the same owner\");\n        }\n\n        uint256 operatorParams = operators[_operator].packedParams;\n        if (!_isInitialized(operatorParams)) {\n            // If the stake is not yet initialized, we add tokens immediately\n            // but we also reset stake initialization time counter.\n            operators[_operator].packedParams = topUps.instantComplete(\n                _value,\n                _operator,\n                operatorParams,\n                escrow\n            );\n        } else {\n            // If the stake is initialized, we do NOT add tokens immediately.\n            // We initiate the top-up and will add tokens to the stake only\n            // after the initialization period for a top-up passes.\n            topUps.initiate(_value, _operator, operatorParams, escrow);\n        }\n    }\n\n    /// @notice Is the operator with the given params initialized\n    function _isInitialized(uint256 _operatorParams)\n        internal\n        view\n        returns (bool)\n    {\n        return\n            block.timestamp >\n            _operatorParams.getCreationTimestamp().add(initializationPeriod);\n    }\n\n    /// @notice Is the operator with the given params undelegating\n    function _isUndelegating(uint256 _operatorParams)\n        internal\n        view\n        returns (bool)\n    {\n        uint256 undelegatedAt = _operatorParams.getUndelegationTimestamp();\n        return (undelegatedAt != 0) && (block.timestamp > undelegatedAt);\n    }\n\n    /// @notice Has the operator with the given params finished undelegating\n    function _isUndelegatingFinished(uint256 _operatorParams)\n        internal\n        view\n        returns (bool)\n    {\n        uint256 undelegatedAt = _operatorParams.getUndelegationTimestamp();\n        return\n            (undelegatedAt != 0) &&\n            (block.timestamp > undelegatedAt.add(undelegationPeriod()));\n    }\n\n    /// @notice Get whether the operator's stake is released\n    /// as far as the operator contract is concerned.\n    /// If the operator contract has a lock on the operator,\n    /// the operator's stake is be released when the lock expires.\n    /// Otherwise the stake is released when the operator finishes undelegating.\n    function _isStakeReleased(\n        address _operator,\n        uint256 _operatorParams,\n        address _operatorContract\n    ) internal view returns (bool) {\n        return\n            _isUndelegatingFinished(_operatorParams) &&\n            locks.isStakeReleased(_operator, _operatorContract);\n    }\n\n    function transferOrDeposit(\n        address _owner,\n        address _operator,\n        uint256 _amount\n    ) internal {\n        if (grantStaking.hasGrantDelegated(_operator)) {\n            // For tokens staked from a grant, transfer them to the escrow.\n            TokenSender(address(token)).approveAndCall(\n                address(escrow),\n                _amount,\n                abi.encode(\n                    _operator,\n                    grantStaking.getGrantForOperator(_operator)\n                )\n            );\n        } else {\n            // For liquid tokens staked, transfer them straight to the owner.\n            token.safeTransfer(_owner, _amount);\n        }\n    }\n}\n",
-  "sourcePath": "/Users/michalina/workspace2/keep-core/solidity-v1/contracts/TokenStaking.sol",
-  "ast": {
-    "absolutePath": "project:/contracts/TokenStaking.sol",
-    "exportedSymbols": {
-      "TokenStaking": [12435]
-    },
-    "id": 12436,
-    "nodeType": "SourceUnit",
-    "nodes": [
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-        "id": 10973,
-        "literals": ["solidity", "0.5", ".17"],
-        "nodeType": "PragmaDirective",
-        "src": "1837:23:39"
-      },
-      {
-        "absolutePath": "openzeppelin-solidity/contracts/token/ERC20/ERC20Burnable.sol",
-        "file": "openzeppelin-solidity/contracts/token/ERC20/ERC20Burnable.sol",
-        "id": 10974,
-        "nodeType": "ImportDirective",
-        "scope": 12436,
-        "sourceUnit": 1024,
-        "src": "1862:71:39",
-        "symbolAliases": [],
-        "unitAlias": ""
-      },
-      {
-        "absolutePath": "openzeppelin-solidity/contracts/token/ERC20/SafeERC20.sol",
-        "file": "openzeppelin-solidity/contracts/token/ERC20/SafeERC20.sol",
-        "id": 10975,
-        "nodeType": "ImportDirective",
-        "scope": 12436,
-        "sourceUnit": 1371,
-        "src": "1934:67:39",
-        "symbolAliases": [],
-        "unitAlias": ""
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-      {
-        "absolutePath": "openzeppelin-solidity/contracts/math/SafeMath.sol",
-        "file": "openzeppelin-solidity/contracts/math/SafeMath.sol",
-        "id": 10976,
-        "nodeType": "ImportDirective",
-        "scope": 12436,
-        "sourceUnit": 471,
-        "src": "2002:59:39",
-        "symbolAliases": [],
-        "unitAlias": ""
-      },
-      {
-        "absolutePath": "project:/contracts/StakeDelegatable.sol",
-        "file": "./StakeDelegatable.sol",
-        "id": 10977,
-        "nodeType": "ImportDirective",
-        "scope": 12436,
-        "sourceUnit": 8890,
-        "src": "2062:32:39",
-        "symbolAliases": [],
-        "unitAlias": ""
-      },
-      {
-        "absolutePath": "project:/contracts/libraries/staking/MinimumStakeSchedule.sol",
-        "file": "./libraries/staking/MinimumStakeSchedule.sol",
-        "id": 10978,
-        "nodeType": "ImportDirective",
-        "scope": 12436,
-        "sourceUnit": 20127,
-        "src": "2095:54:39",
-        "symbolAliases": [],
-        "unitAlias": ""
-      },
-      {
-        "absolutePath": "project:/contracts/libraries/staking/GrantStaking.sol",
-        "file": "./libraries/staking/GrantStaking.sol",
-        "id": 10979,
-        "nodeType": "ImportDirective",
-        "scope": 12436,
-        "sourceUnit": 19500,
-        "src": "2150:46:39",
-        "symbolAliases": [],
-        "unitAlias": ""
-      },
-      {
-        "absolutePath": "project:/contracts/libraries/staking/Locks.sol",
-        "file": "./libraries/staking/Locks.sol",
-        "id": 10980,
-        "nodeType": "ImportDirective",
-        "scope": 12436,
-        "sourceUnit": 20066,
-        "src": "2197:39:39",
-        "symbolAliases": [],
-        "unitAlias": ""
-      },
-      {
-        "absolutePath": "project:/contracts/libraries/staking/TopUps.sol",
-        "file": "./libraries/staking/TopUps.sol",
-        "id": 10981,
-        "nodeType": "ImportDirective",
-        "scope": 12436,
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-        "src": "2237:40:39",
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-        "unitAlias": ""
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-      {
-        "absolutePath": "project:/contracts/utils/PercentUtils.sol",
-        "file": "./utils/PercentUtils.sol",
-        "id": 10982,
-        "nodeType": "ImportDirective",
-        "scope": 12436,
-        "sourceUnit": 28062,
-        "src": "2278:34:39",
-        "symbolAliases": [],
-        "unitAlias": ""
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-                      }
-                    },
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-                      "src": "5488:7:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_contract$_TokenStakingEscrow_$13399",
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-                      }
-                    },
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-                    "typeDescriptions": {
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-                      "typeString": "contract TokenStakingEscrow"
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-                        "typeString": "uint256"
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-                      "name": "deployedAt",
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-                      "src": "5589:10:39",
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-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      }
-                    },
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-                        "name": "block",
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-                  "src": "5589:28:39"
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-            },
-            "documentation": "@notice Creates a token staking contract for a provided Standard ERC20Burnable token.\n @param _token KEEP token contract.\n @param _tokenGrant KEEP token grant contract.\n @param _escrow Escrow dedicated for this staking contract.\n @param _registry Keep contract registry contract.\n @param _initializationPeriod To avoid certain attacks on work selection, recently created\n operators must wait for a specific period of time before being eligible for work selection.",
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-            "kind": "constructor",
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-                    "src": "5400:9:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_contract$_KeepRegistry_$6120",
-                      "typeString": "contract KeepRegistry"
-                    }
-                  }
-                ],
-                "id": 11126,
-                "modifierName": {
-                  "argumentTypes": null,
-                  "id": 11124,
-                  "name": "Authorizations",
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-                  "overloadedDeclarations": [],
-                  "referencedDeclaration": 1783,
-                  "src": "5385:14:39",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_type$_t_contract$_Authorizations_$1783_$",
-                    "typeString": "type(contract Authorizations)"
-                  }
-                },
-                "nodeType": "ModifierInvocation",
-                "src": "5385:25:39"
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-            ],
-            "name": "",
-            "nodeType": "FunctionDefinition",
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-              "nodeType": "ParameterList",
-              "parameters": [
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-                  "constant": false,
-                  "id": 11114,
-                  "name": "_token",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 11154,
-                  "src": "5212:20:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_contract$_ERC20Burnable_$1023",
-                    "typeString": "contract ERC20Burnable"
-                  },
-                  "typeName": {
-                    "contractScope": null,
-                    "id": 11113,
-                    "name": "ERC20Burnable",
-                    "nodeType": "UserDefinedTypeName",
-                    "referencedDeclaration": 1023,
-                    "src": "5212:13:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_contract$_ERC20Burnable_$1023",
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-                  },
-                  "value": null,
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-                },
-                {
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-                  "id": 11116,
-                  "name": "_tokenGrant",
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-                  "src": "5242:22:39",
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-                  "storageLocation": "default",
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-                    "typeString": "contract TokenGrant"
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-                    "id": 11115,
-                    "name": "TokenGrant",
-                    "nodeType": "UserDefinedTypeName",
-                    "referencedDeclaration": 10702,
-                    "src": "5242:10:39",
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-                      "typeIdentifier": "t_contract$_TokenGrant_$10702",
-                      "typeString": "contract TokenGrant"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                },
-                {
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-                  "id": 11118,
-                  "name": "_escrow",
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-                  "src": "5274:26:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_contract$_TokenStakingEscrow_$13399",
-                    "typeString": "contract TokenStakingEscrow"
-                  },
-                  "typeName": {
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-                    "id": 11117,
-                    "name": "TokenStakingEscrow",
-                    "nodeType": "UserDefinedTypeName",
-                    "referencedDeclaration": 13399,
-                    "src": "5274:18:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_contract$_TokenStakingEscrow_$13399",
-                      "typeString": "contract TokenStakingEscrow"
-                    }
-                  },
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-                  "visibility": "internal"
-                },
-                {
-                  "constant": false,
-                  "id": 11120,
-                  "name": "_registry",
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-                  "src": "5310:22:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
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-                    "typeIdentifier": "t_contract$_KeepRegistry_$6120",
-                    "typeString": "contract KeepRegistry"
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-                    "id": 11119,
-                    "name": "KeepRegistry",
-                    "nodeType": "UserDefinedTypeName",
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-                    "src": "5310:12:39",
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-                      "typeIdentifier": "t_contract$_KeepRegistry_$6120",
-                      "typeString": "contract KeepRegistry"
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-                  },
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-                  "visibility": "internal"
-                },
-                {
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-                  "id": 11122,
-                  "name": "_initializationPeriod",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 11154,
-                  "src": "5342:29:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_uint256",
-                    "typeString": "uint256"
-                  },
-                  "typeName": {
-                    "id": 11121,
-                    "name": "uint256",
-                    "nodeType": "ElementaryTypeName",
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-                    "typeDescriptions": {
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-            },
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-            "src": "5191:433:39",
-            "stateMutability": "nonpayable",
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-              "nodeType": "Block",
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-                  "expression": {
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-                    "arguments": [
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-                        "argumentTypes": null,
-                        "id": 11161,
-                        "name": "minimumStakeScheduleStart",
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-                        "referencedDeclaration": 11112,
-                        "src": "6071:25:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
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-                    ],
-                    "expression": {
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-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
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-                      ],
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-                        "id": 11159,
-                        "name": "MinimumStakeSchedule",
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-                        "referencedDeclaration": 20126,
-                        "src": "6042:20:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_type$_t_contract$_MinimumStakeSchedule_$20126_$",
-                          "typeString": "type(library MinimumStakeSchedule)"
-                        }
-                      },
-                      "id": 11160,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "memberName": "current",
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-                        "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_uint256_$",
-                        "typeString": "function (uint256) view returns (uint256)"
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-                    },
-                    "id": 11162,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "6042:55:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
-                    }
-                  },
-                  "functionReturnParameters": 11158,
-                  "id": 11163,
-                  "nodeType": "Return",
-                  "src": "6035:62:39"
-                }
-              ]
-            },
-            "documentation": "@notice Returns minimum amount of KEEP that allows sMPC cluster client to\n participate in the Keep network. Expressed as number with 18-decimal places.\n Initial minimum stake is higher than the final and lowered periodically based\n on the amount of steps and the length of the minimum stake schedule in seconds.",
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-            "implemented": true,
-            "kind": "function",
-            "modifiers": [],
-            "name": "minimumStake",
-            "nodeType": "FunctionDefinition",
-            "parameters": {
-              "id": 11155,
-              "nodeType": "ParameterList",
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-              "src": "5992:2:39"
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-            "returnParameters": {
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-              "nodeType": "ParameterList",
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-                  "id": 11157,
-                  "name": "",
-                  "nodeType": "VariableDeclaration",
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-                  "src": "6016:7:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_uint256",
-                    "typeString": "uint256"
-                  },
-                  "typeName": {
-                    "id": 11156,
-                    "name": "uint256",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "6016:7:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
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-                  },
-                  "value": null,
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-            "scope": 12435,
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-            "stateMutability": "view",
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-                    "condition": {
-                      "argumentTypes": null,
-                      "commonType": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      },
-                      "id": 11176,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "leftExpression": {
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-                        "expression": {
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-                          "id": 11170,
-                          "name": "block",
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-                          "src": "6602:5:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_magic_block",
-                            "typeString": "block"
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-                        "id": 11171,
-                        "isConstant": false,
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-                        "isPure": false,
-                        "lValueRequested": false,
-                        "memberName": "timestamp",
-                        "nodeType": "MemberAccess",
-                        "referencedDeclaration": null,
-                        "src": "6602:15:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      },
-                      "nodeType": "BinaryOperation",
-                      "operator": "<",
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-                        "arguments": [
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-                            "argumentTypes": null,
-                            "id": 11174,
-                            "name": "twoMonths",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 11109,
-                            "src": "6635:9:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          }
-                        ],
-                        "expression": {
-                          "argumentTypes": [
-                            {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          ],
-                          "expression": {
-                            "argumentTypes": null,
-                            "id": 11172,
-                            "name": "deployedAt",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 11089,
-                            "src": "6620:10:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          },
-                          "id": 11173,
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": false,
-                          "lValueRequested": false,
-                          "memberName": "add",
-                          "nodeType": "MemberAccess",
-                          "referencedDeclaration": 310,
-                          "src": "6620:14:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$",
-                            "typeString": "function (uint256,uint256) pure returns (uint256)"
-                          }
-                        },
-                        "id": 11175,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "kind": "functionCall",
-                        "lValueRequested": false,
-                        "names": [],
-                        "nodeType": "FunctionCall",
-                        "src": "6620:25:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      },
-                      "src": "6602:43:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_bool",
-                        "typeString": "bool"
-                      }
-                    },
-                    "falseExpression": {
-                      "argumentTypes": null,
-                      "id": 11178,
-                      "name": "twoMonths",
-                      "nodeType": "Identifier",
-                      "overloadedDeclarations": [],
-                      "referencedDeclaration": 11109,
-                      "src": "6659:9:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      }
-                    },
-                    "id": 11179,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "lValueRequested": false,
-                    "nodeType": "Conditional",
-                    "src": "6602:66:39",
-                    "trueExpression": {
-                      "argumentTypes": null,
-                      "id": 11177,
-                      "name": "twoWeeks",
-                      "nodeType": "Identifier",
-                      "overloadedDeclarations": [],
-                      "referencedDeclaration": 11106,
-                      "src": "6648:8:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
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-            "name": "undelegationPeriod",
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-                        "leftExpression": {
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-                            "id": 11203,
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-                          "memberName": "length",
-                          "nodeType": "MemberAccess",
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-                          "arguments": [
-                            {
-                              "argumentTypes": null,
-                              "id": 11244,
-                              "name": "_from",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 11184,
-                              "src": "8955:5:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              }
-                            },
-                            {
-                              "argumentTypes": null,
-                              "id": 11245,
-                              "name": "_value",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 11186,
-                              "src": "8962:6:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_uint256",
-                                "typeString": "uint256"
-                              }
-                            },
-                            {
-                              "argumentTypes": null,
-                              "id": 11246,
-                              "name": "operator",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 11221,
-                              "src": "8970:8:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              }
-                            },
-                            {
-                              "argumentTypes": null,
-                              "id": 11247,
-                              "name": "_extraData",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 11190,
-                              "src": "8980:10:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_bytes_memory_ptr",
-                                "typeString": "bytes memory"
-                              }
-                            }
-                          ],
-                          "expression": {
-                            "argumentTypes": [
-                              {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              },
-                              {
-                                "typeIdentifier": "t_uint256",
-                                "typeString": "uint256"
-                              },
-                              {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              },
-                              {
-                                "typeIdentifier": "t_bytes_memory_ptr",
-                                "typeString": "bytes memory"
-                              }
-                            ],
-                            "id": 11243,
-                            "name": "topUp",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 12296,
-                            "src": "8949:5:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$_t_address_$_t_bytes_memory_ptr_$returns$__$",
-                              "typeString": "function (address,uint256,address,bytes memory)"
-                            }
-                          },
-                          "id": 11248,
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": false,
-                          "kind": "functionCall",
-                          "lValueRequested": false,
-                          "names": [],
-                          "nodeType": "FunctionCall",
-                          "src": "8949:42:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_tuple$__$",
-                            "typeString": "tuple()"
-                          }
-                        },
-                        "id": 11249,
-                        "nodeType": "ExpressionStatement",
-                        "src": "8949:42:39"
-                      }
-                    ]
-                  },
-                  "id": 11251,
-                  "nodeType": "IfStatement",
-                  "src": "8587:415:39",
-                  "trueBody": {
-                    "id": 11242,
-                    "nodeType": "Block",
-                    "src": "8653:207:39",
-                    "statements": [
-                      {
-                        "expression": {
-                          "argumentTypes": null,
-                          "arguments": [
-                            {
-                              "argumentTypes": null,
-                              "id": 11236,
-                              "name": "_from",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 11184,
-                              "src": "8813:5:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              }
-                            },
-                            {
-                              "argumentTypes": null,
-                              "id": 11237,
-                              "name": "_value",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 11186,
-                              "src": "8820:6:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_uint256",
-                                "typeString": "uint256"
-                              }
-                            },
-                            {
-                              "argumentTypes": null,
-                              "id": 11238,
-                              "name": "operator",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 11221,
-                              "src": "8828:8:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              }
-                            },
-                            {
-                              "argumentTypes": null,
-                              "id": 11239,
-                              "name": "_extraData",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 11190,
-                              "src": "8838:10:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_bytes_memory_ptr",
-                                "typeString": "bytes memory"
-                              }
-                            }
-                          ],
-                          "expression": {
-                            "argumentTypes": [
-                              {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              },
-                              {
-                                "typeIdentifier": "t_uint256",
-                                "typeString": "uint256"
-                              },
-                              {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              },
-                              {
-                                "typeIdentifier": "t_bytes_memory_ptr",
-                                "typeString": "bytes memory"
-                              }
-                            ],
-                            "id": 11235,
-                            "name": "delegate",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 12176,
-                            "src": "8804:8:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$_t_address_$_t_bytes_memory_ptr_$returns$__$",
-                              "typeString": "function (address,uint256,address,bytes memory)"
-                            }
-                          },
-                          "id": 11240,
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": false,
-                          "kind": "functionCall",
-                          "lValueRequested": false,
-                          "names": [],
-                          "nodeType": "FunctionCall",
-                          "src": "8804:45:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_tuple$__$",
-                            "typeString": "tuple()"
-                          }
-                        },
-                        "id": 11241,
-                        "nodeType": "ExpressionStatement",
-                        "src": "8804:45:39"
-                      }
-                    ]
-                  }
-                }
-              ]
-            },
-            "documentation": "@notice Receives approval of token transfer and stakes the approved\n amount or adds the approved amount to an existing delegation (a “top-up”).\n In case of a top-up, it is expected that the operator stake is not\n undelegated and that the top-up is performed from the same source of\n tokens as the initial delegation. That is, if the tokens were delegated\n from a grant, top-up has to be performed from the same grant. If the\n delegation was done using liquid tokens, only liquid tokens from the\n same owner can be used to top-up the stake.\n Top-up can not be cancelled so it is important to be careful with the\n amount of KEEP added to the stake.\n @dev Requires that the provided token contract be the same one linked to\n this contract.\n @param _from The owner of the tokens who approved them to transfer.\n @param _value Approved amount for the transfer and stake.\n @param _token Token contract address.\n @param _extraData Data for stake delegation. This byte array must have\n the following values concatenated:\n - Beneficiary address (20 bytes), ignored for a top-up\n - Operator address (20 bytes)\n - Authorizer address (20 bytes), ignored for a top-up\n - Grant ID (32 bytes) - required only when called by TokenStakingEscrow",
-            "id": 11253,
-            "implemented": true,
-            "kind": "function",
-            "modifiers": [],
-            "name": "receiveApproval",
-            "nodeType": "FunctionDefinition",
-            "parameters": {
-              "id": 11191,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 11184,
-                  "name": "_from",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 11253,
-                  "src": "8094:13:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 11183,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "8094:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                },
-                {
-                  "constant": false,
-                  "id": 11186,
-                  "name": "_value",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 11253,
-                  "src": "8117:14:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_uint256",
-                    "typeString": "uint256"
-                  },
-                  "typeName": {
-                    "id": 11185,
-                    "name": "uint256",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "8117:7:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                },
-                {
-                  "constant": false,
-                  "id": 11188,
-                  "name": "_token",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 11253,
-                  "src": "8141:14:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 11187,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "8141:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                },
-                {
-                  "constant": false,
-                  "id": 11190,
-                  "name": "_extraData",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 11253,
-                  "src": "8165:23:39",
-                  "stateVariable": false,
-                  "storageLocation": "memory",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_bytes_memory_ptr",
-                    "typeString": "bytes"
-                  },
-                  "typeName": {
-                    "id": 11189,
-                    "name": "bytes",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "8165:5:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_bytes_storage_ptr",
-                      "typeString": "bytes"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "8084:110:39"
-            },
-            "returnParameters": {
-              "id": 11192,
-              "nodeType": "ParameterList",
-              "parameters": [],
-              "src": "8202:0:39"
-            },
-            "scope": 12435,
-            "src": "8060:948:39",
-            "stateMutability": "nonpayable",
-            "superFunction": null,
-            "visibility": "public"
-          },
-          {
-            "body": {
-              "id": 11273,
-              "nodeType": "Block",
-              "src": "9304:180:39",
-              "statements": [
-                {
-                  "expression": {
-                    "argumentTypes": null,
-                    "id": 11271,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "lValueRequested": false,
-                    "leftHandSide": {
-                      "argumentTypes": null,
-                      "expression": {
-                        "argumentTypes": null,
-                        "baseExpression": {
-                          "argumentTypes": null,
-                          "id": 11258,
-                          "name": "operators",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 8825,
-                          "src": "9314:9:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_mapping$_t_address_$_t_struct$_Operator_$8834_storage_$",
-                            "typeString": "mapping(address => struct StakeDelegatable.Operator storage ref)"
-                          }
-                        },
-                        "id": 11260,
-                        "indexExpression": {
-                          "argumentTypes": null,
-                          "id": 11259,
-                          "name": "_operator",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 11255,
-                          "src": "9324:9:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_address",
-                            "typeString": "address"
-                          }
-                        },
-                        "isConstant": false,
-                        "isLValue": true,
-                        "isPure": false,
-                        "lValueRequested": false,
-                        "nodeType": "IndexAccess",
-                        "src": "9314:20:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_Operator_$8834_storage",
-                          "typeString": "struct StakeDelegatable.Operator storage ref"
-                        }
-                      },
-                      "id": 11261,
-                      "isConstant": false,
-                      "isLValue": true,
-                      "isPure": false,
-                      "lValueRequested": true,
-                      "memberName": "packedParams",
-                      "nodeType": "MemberAccess",
-                      "referencedDeclaration": 8827,
-                      "src": "9314:33:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      }
-                    },
-                    "nodeType": "Assignment",
-                    "operator": "=",
-                    "rightHandSide": {
-                      "argumentTypes": null,
-                      "arguments": [
-                        {
-                          "argumentTypes": null,
-                          "id": 11264,
-                          "name": "_operator",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 11255,
-                          "src": "9377:9:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_address",
-                            "typeString": "address"
-                          }
-                        },
-                        {
-                          "argumentTypes": null,
-                          "expression": {
-                            "argumentTypes": null,
-                            "baseExpression": {
-                              "argumentTypes": null,
-                              "id": 11265,
-                              "name": "operators",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 8825,
-                              "src": "9400:9:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_mapping$_t_address_$_t_struct$_Operator_$8834_storage_$",
-                                "typeString": "mapping(address => struct StakeDelegatable.Operator storage ref)"
-                              }
-                            },
-                            "id": 11267,
-                            "indexExpression": {
-                              "argumentTypes": null,
-                              "id": 11266,
-                              "name": "_operator",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 11255,
-                              "src": "9410:9:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              }
-                            },
-                            "isConstant": false,
-                            "isLValue": true,
-                            "isPure": false,
-                            "lValueRequested": false,
-                            "nodeType": "IndexAccess",
-                            "src": "9400:20:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_Operator_$8834_storage",
-                              "typeString": "struct StakeDelegatable.Operator storage ref"
-                            }
-                          },
-                          "id": 11268,
-                          "isConstant": false,
-                          "isLValue": true,
-                          "isPure": false,
-                          "lValueRequested": false,
-                          "memberName": "packedParams",
-                          "nodeType": "MemberAccess",
-                          "referencedDeclaration": 8827,
-                          "src": "9400:33:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_uint256",
-                            "typeString": "uint256"
-                          }
-                        },
-                        {
-                          "argumentTypes": null,
-                          "id": 11269,
-                          "name": "initializationPeriod",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 11091,
-                          "src": "9447:20:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_uint256",
-                            "typeString": "uint256"
-                          }
-                        }
-                      ],
-                      "expression": {
-                        "argumentTypes": [
-                          {
-                            "typeIdentifier": "t_address",
-                            "typeString": "address"
-                          },
-                          {
-                            "typeIdentifier": "t_uint256",
-                            "typeString": "uint256"
-                          },
-                          {
-                            "typeIdentifier": "t_uint256",
-                            "typeString": "uint256"
-                          }
-                        ],
-                        "expression": {
-                          "argumentTypes": null,
-                          "id": 11262,
-                          "name": "topUps",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 11103,
-                          "src": "9350:6:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_struct$_Storage_$20159_storage",
-                            "typeString": "struct TopUps.Storage storage ref"
-                          }
-                        },
-                        "id": 11263,
-                        "isConstant": false,
-                        "isLValue": true,
-                        "isPure": false,
-                        "lValueRequested": false,
-                        "memberName": "commit",
-                        "nodeType": "MemberAccess",
-                        "referencedDeclaration": 20347,
-                        "src": "9350:13:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_function_delegatecall_nonpayable$_t_struct$_Storage_$20159_storage_ptr_$_t_address_$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_struct$_Storage_$20159_storage_ptr_$",
-                          "typeString": "function (struct TopUps.Storage storage pointer,address,uint256,uint256) returns (uint256)"
-                        }
-                      },
-                      "id": 11270,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "kind": "functionCall",
-                      "lValueRequested": false,
-                      "names": [],
-                      "nodeType": "FunctionCall",
-                      "src": "9350:127:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      }
-                    },
-                    "src": "9314:163:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
-                    }
-                  },
-                  "id": 11272,
-                  "nodeType": "ExpressionStatement",
-                  "src": "9314:163:39"
-                }
-              ]
-            },
-            "documentation": "@notice Commits pending top-up for the provided operator. If the top-up\n did not pass the initialization period, the function fails.\n @param _operator The operator with a pending top-up that is getting\n committed.",
-            "id": 11274,
-            "implemented": true,
-            "kind": "function",
-            "modifiers": [],
-            "name": "commitTopUp",
-            "nodeType": "FunctionDefinition",
-            "parameters": {
-              "id": 11256,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 11255,
-                  "name": "_operator",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 11274,
-                  "src": "9278:17:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 11254,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "9278:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "9277:19:39"
-            },
-            "returnParameters": {
-              "id": 11257,
-              "nodeType": "ParameterList",
-              "parameters": [],
-              "src": "9304:0:39"
-            },
-            "scope": 12435,
-            "src": "9257:227:39",
-            "stateMutability": "nonpayable",
-            "superFunction": null,
-            "visibility": "public"
-          },
-          {
-            "body": {
-              "id": 11342,
-              "nodeType": "Block",
-              "src": "9840:582:39",
-              "statements": [
-                {
-                  "assignments": [11280],
-                  "declarations": [
-                    {
-                      "constant": false,
-                      "id": 11280,
-                      "name": "owner",
-                      "nodeType": "VariableDeclaration",
-                      "scope": 11342,
-                      "src": "9850:13:39",
-                      "stateVariable": false,
-                      "storageLocation": "default",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_address",
-                        "typeString": "address"
-                      },
-                      "typeName": {
-                        "id": 11279,
-                        "name": "address",
-                        "nodeType": "ElementaryTypeName",
-                        "src": "9850:7:39",
-                        "stateMutability": "nonpayable",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      },
-                      "value": null,
-                      "visibility": "internal"
-                    }
-                  ],
-                  "id": 11285,
-                  "initialValue": {
-                    "argumentTypes": null,
-                    "expression": {
-                      "argumentTypes": null,
-                      "baseExpression": {
-                        "argumentTypes": null,
-                        "id": 11281,
-                        "name": "operators",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 8825,
-                        "src": "9866:9:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_mapping$_t_address_$_t_struct$_Operator_$8834_storage_$",
-                          "typeString": "mapping(address => struct StakeDelegatable.Operator storage ref)"
-                        }
-                      },
-                      "id": 11283,
-                      "indexExpression": {
-                        "argumentTypes": null,
-                        "id": 11282,
-                        "name": "_operator",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11276,
-                        "src": "9876:9:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      },
-                      "isConstant": false,
-                      "isLValue": true,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "nodeType": "IndexAccess",
-                      "src": "9866:20:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_struct$_Operator_$8834_storage",
-                        "typeString": "struct StakeDelegatable.Operator storage ref"
-                      }
-                    },
-                    "id": 11284,
-                    "isConstant": false,
-                    "isLValue": true,
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-                            "typeString": "uint256"
-                          }
-                        },
-                        "id": 11331,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "lValueRequested": false,
-                        "memberName": "setAmount",
-                        "nodeType": "MemberAccess",
-                        "referencedDeclaration": 27930,
-                        "src": "10334:24:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$",
-                          "typeString": "function (uint256,uint256) pure returns (uint256)"
-                        }
-                      },
-                      "id": 11333,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "kind": "functionCall",
-                      "lValueRequested": false,
-                      "names": [],
-                      "nodeType": "FunctionCall",
-                      "src": "10334:27:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      }
-                    },
-                    "src": "10298:63:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
-                    }
-                  },
-                  "id": 11335,
-                  "nodeType": "ExpressionStatement",
-                  "src": "10298:63:39"
-                },
-                {
-                  "expression": {
-                    "argumentTypes": null,
-                    "arguments": [
-                      {
-                        "argumentTypes": null,
-                        "id": 11337,
-                        "name": "owner",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11280,
-                        "src": "10390:5:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      },
-                      {
-                        "argumentTypes": null,
-                        "id": 11338,
-                        "name": "_operator",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11276,
-                        "src": "10397:9:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      },
-                      {
-                        "argumentTypes": null,
-                        "id": 11339,
-                        "name": "amount",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11321,
-                        "src": "10408:6:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      }
-                    ],
-                    "expression": {
-                      "argumentTypes": [
-                        {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        },
-                        {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        },
-                        {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      ],
-                      "id": 11336,
-                      "name": "transferOrDeposit",
-                      "nodeType": "Identifier",
-                      "overloadedDeclarations": [],
-                      "referencedDeclaration": 12434,
-                      "src": "10372:17:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
-                        "typeString": "function (address,address,uint256)"
-                      }
-                    },
-                    "id": 11340,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "10372:43:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_tuple$__$",
-                      "typeString": "tuple()"
-                    }
-                  },
-                  "id": 11341,
-                  "nodeType": "ExpressionStatement",
-                  "src": "10372:43:39"
-                }
-              ]
-            },
-            "documentation": "@notice Cancels stake of tokens within the operator initialization period\n without being subjected to the token lockup for the undelegation period.\n This can be used to undo mistaken delegation to the wrong operator address.\n @param _operator Address of the stake operator.",
-            "id": 11343,
-            "implemented": true,
-            "kind": "function",
-            "modifiers": [],
-            "name": "cancelStake",
-            "nodeType": "FunctionDefinition",
-            "parameters": {
-              "id": 11277,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 11276,
-                  "name": "_operator",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 11343,
-                  "src": "9814:17:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 11275,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "9814:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "9813:19:39"
-            },
-            "returnParameters": {
-              "id": 11278,
-              "nodeType": "ParameterList",
-              "parameters": [],
-              "src": "9840:0:39"
-            },
-            "scope": 12435,
-            "src": "9793:629:39",
-            "stateMutability": "nonpayable",
-            "superFunction": null,
-            "visibility": "public"
-          },
-          {
-            "body": {
-              "id": 11354,
-              "nodeType": "Block",
-              "src": "10704:57:39",
-              "statements": [
-                {
-                  "expression": {
-                    "argumentTypes": null,
-                    "arguments": [
-                      {
-                        "argumentTypes": null,
-                        "id": 11349,
-                        "name": "_operator",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11345,
-                        "src": "10727:9:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      },
-                      {
-                        "argumentTypes": null,
-                        "expression": {
-                          "argumentTypes": null,
-                          "id": 11350,
-                          "name": "block",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 28136,
-                          "src": "10738:5:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_magic_block",
-                            "typeString": "block"
-                          }
-                        },
-                        "id": 11351,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "lValueRequested": false,
-                        "memberName": "timestamp",
-                        "nodeType": "MemberAccess",
-                        "referencedDeclaration": null,
-                        "src": "10738:15:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      }
-                    ],
-                    "expression": {
-                      "argumentTypes": [
-                        {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        },
-                        {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      ],
-                      "id": 11348,
-                      "name": "undelegateAt",
-                      "nodeType": "Identifier",
-                      "overloadedDeclarations": [],
-                      "referencedDeclaration": 11446,
-                      "src": "10714:12:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$",
-                        "typeString": "function (address,uint256)"
-                      }
-                    },
-                    "id": 11352,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "10714:40:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_tuple$__$",
-                      "typeString": "tuple()"
-                    }
-                  },
-                  "id": 11353,
-                  "nodeType": "ExpressionStatement",
-                  "src": "10714:40:39"
-                }
-              ]
-            },
-            "documentation": "@notice Undelegates staked tokens. You will be able to recover your stake by calling\n `recoverStake()` with operator address once undelegation period is over.\n @param _operator Address of the stake operator.",
-            "id": 11355,
-            "implemented": true,
-            "kind": "function",
-            "modifiers": [],
-            "name": "undelegate",
-            "nodeType": "FunctionDefinition",
-            "parameters": {
-              "id": 11346,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 11345,
-                  "name": "_operator",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 11355,
-                  "src": "10678:17:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 11344,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "10678:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "10677:19:39"
-            },
-            "returnParameters": {
-              "id": 11347,
-              "nodeType": "ParameterList",
-              "parameters": [],
-              "src": "10704:0:39"
-            },
-            "scope": 12435,
-            "src": "10658:103:39",
-            "stateMutability": "nonpayable",
-            "superFunction": null,
-            "visibility": "public"
-          },
-          {
-            "body": {
-              "id": 11445,
-              "nodeType": "Block",
-              "src": "11255:1402:39",
-              "statements": [
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-                  "expression": {
-                    "argumentTypes": null,
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-                        "argumentTypes": null,
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-                          "typeIdentifier": "t_bool",
-                          "typeString": "bool"
-                        },
-                        "id": 11380,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "lValueRequested": false,
-                        "leftExpression": {
-                          "argumentTypes": null,
-                          "commonType": {
-                            "typeIdentifier": "t_bool",
-                            "typeString": "bool"
-                          },
-                          "id": 11374,
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": false,
-                          "lValueRequested": false,
-                          "leftExpression": {
-                            "argumentTypes": null,
-                            "commonType": {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
-                            },
-                            "id": 11366,
-                            "isConstant": false,
-                            "isLValue": false,
-                            "isPure": false,
-                            "lValueRequested": false,
-                            "leftExpression": {
-                              "argumentTypes": null,
-                              "expression": {
-                                "argumentTypes": null,
-                                "id": 11363,
-                                "name": "msg",
-                                "nodeType": "Identifier",
-                                "overloadedDeclarations": [],
-                                "referencedDeclaration": 28146,
-                                "src": "11286:3:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_magic_message",
-                                  "typeString": "msg"
-                                }
-                              },
-                              "id": 11364,
-                              "isConstant": false,
-                              "isLValue": false,
-                              "isPure": false,
-                              "lValueRequested": false,
-                              "memberName": "sender",
-                              "nodeType": "MemberAccess",
-                              "referencedDeclaration": null,
-                              "src": "11286:10:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_address_payable",
-                                "typeString": "address payable"
-                              }
-                            },
-                            "nodeType": "BinaryOperation",
-                            "operator": "==",
-                            "rightExpression": {
-                              "argumentTypes": null,
-                              "id": 11365,
-                              "name": "_operator",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 11357,
-                              "src": "11300:9:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              }
-                            },
-                            "src": "11286:23:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_bool",
-                              "typeString": "bool"
-                            }
-                          },
-                          "nodeType": "BinaryOperation",
-                          "operator": "||",
-                          "rightExpression": {
-                            "argumentTypes": null,
-                            "commonType": {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
-                            },
-                            "id": 11373,
-                            "isConstant": false,
-                            "isLValue": false,
-                            "isPure": false,
-                            "lValueRequested": false,
-                            "leftExpression": {
-                              "argumentTypes": null,
-                              "expression": {
-                                "argumentTypes": null,
-                                "id": 11367,
-                                "name": "msg",
-                                "nodeType": "Identifier",
-                                "overloadedDeclarations": [],
-                                "referencedDeclaration": 28146,
-                                "src": "11329:3:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_magic_message",
-                                  "typeString": "msg"
-                                }
-                              },
-                              "id": 11368,
-                              "isConstant": false,
-                              "isLValue": false,
-                              "isPure": false,
-                              "lValueRequested": false,
-                              "memberName": "sender",
-                              "nodeType": "MemberAccess",
-                              "referencedDeclaration": null,
-                              "src": "11329:10:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_address_payable",
-                                "typeString": "address payable"
-                              }
-                            },
-                            "nodeType": "BinaryOperation",
-                            "operator": "==",
-                            "rightExpression": {
-                              "argumentTypes": null,
-                              "expression": {
-                                "argumentTypes": null,
-                                "baseExpression": {
-                                  "argumentTypes": null,
-                                  "id": 11369,
-                                  "name": "operators",
-                                  "nodeType": "Identifier",
-                                  "overloadedDeclarations": [],
-                                  "referencedDeclaration": 8825,
-                                  "src": "11343:9:39",
-                                  "typeDescriptions": {
-                                    "typeIdentifier": "t_mapping$_t_address_$_t_struct$_Operator_$8834_storage_$",
-                                    "typeString": "mapping(address => struct StakeDelegatable.Operator storage ref)"
-                                  }
-                                },
-                                "id": 11371,
-                                "indexExpression": {
-                                  "argumentTypes": null,
-                                  "id": 11370,
-                                  "name": "_operator",
-                                  "nodeType": "Identifier",
-                                  "overloadedDeclarations": [],
-                                  "referencedDeclaration": 11357,
-                                  "src": "11353:9:39",
-                                  "typeDescriptions": {
-                                    "typeIdentifier": "t_address",
-                                    "typeString": "address"
-                                  }
-                                },
-                                "isConstant": false,
-                                "isLValue": true,
-                                "isPure": false,
-                                "lValueRequested": false,
-                                "nodeType": "IndexAccess",
-                                "src": "11343:20:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_struct$_Operator_$8834_storage",
-                                  "typeString": "struct StakeDelegatable.Operator storage ref"
-                                }
-                              },
-                              "id": 11372,
-                              "isConstant": false,
-                              "isLValue": true,
-                              "isPure": false,
-                              "lValueRequested": false,
-                              "memberName": "owner",
-                              "nodeType": "MemberAccess",
-                              "referencedDeclaration": 8829,
-                              "src": "11343:26:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              }
-                            },
-                            "src": "11329:40:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_bool",
-                              "typeString": "bool"
-                            }
-                          },
-                          "src": "11286:83:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_bool",
-                            "typeString": "bool"
-                          }
-                        },
-                        "nodeType": "BinaryOperation",
-                        "operator": "||",
-                        "rightExpression": {
-                          "argumentTypes": null,
-                          "arguments": [
-                            {
-                              "argumentTypes": null,
-                              "id": 11377,
-                              "name": "_operator",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 11357,
-                              "src": "11416:9:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              }
-                            },
-                            {
-                              "argumentTypes": null,
-                              "id": 11378,
-                              "name": "tokenGrant",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 11095,
-                              "src": "11427:10:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_contract$_TokenGrant_$10702",
-                                "typeString": "contract TokenGrant"
-                              }
-                            }
-                          ],
-                          "expression": {
-                            "argumentTypes": [
-                              {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              },
-                              {
-                                "typeIdentifier": "t_contract$_TokenGrant_$10702",
-                                "typeString": "contract TokenGrant"
-                              }
-                            ],
-                            "expression": {
-                              "argumentTypes": null,
-                              "id": 11375,
-                              "name": "grantStaking",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 11099,
-                              "src": "11389:12:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_Storage_$19231_storage",
-                                "typeString": "struct GrantStaking.Storage storage ref"
-                              }
-                            },
-                            "id": 11376,
-                            "isConstant": false,
-                            "isLValue": true,
-                            "isPure": false,
-                            "lValueRequested": false,
-                            "memberName": "canUndelegate",
-                            "nodeType": "MemberAccess",
-                            "referencedDeclaration": 19498,
-                            "src": "11389:26:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_function_delegatecall_nonpayable$_t_struct$_Storage_$19231_storage_ptr_$_t_address_$_t_contract$_TokenGrant_$10702_$returns$_t_bool_$bound_to$_t_struct$_Storage_$19231_storage_ptr_$",
-                              "typeString": "function (struct GrantStaking.Storage storage pointer,address,contract TokenGrant) returns (bool)"
-                            }
-                          },
-                          "id": 11379,
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": false,
-                          "kind": "functionCall",
-                          "lValueRequested": false,
-                          "names": [],
-                          "nodeType": "FunctionCall",
-                          "src": "11389:49:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_bool",
-                            "typeString": "bool"
-                          }
-                        },
-                        "src": "11286:152:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_bool",
-                          "typeString": "bool"
-                        }
-                      },
-                      {
-                        "argumentTypes": null,
-                        "hexValue": "4e6f7420617574686f72697a6564",
-                        "id": 11381,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": true,
-                        "kind": "string",
-                        "lValueRequested": false,
-                        "nodeType": "Literal",
-                        "src": "11452:16:39",
-                        "subdenomination": null,
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_stringliteral_fac3bac318c0d00994f57b0f2f4c643c313072b71db2302bf4b900309cc50b36",
-                          "typeString": "literal_string \"Not authorized\""
-                        },
-                        "value": "Not authorized"
-                      }
-                    ],
-                    "expression": {
-                      "argumentTypes": [
-                        {
-                          "typeIdentifier": "t_bool",
-                          "typeString": "bool"
-                        },
-                        {
-                          "typeIdentifier": "t_stringliteral_fac3bac318c0d00994f57b0f2f4c643c313072b71db2302bf4b900309cc50b36",
-                          "typeString": "literal_string \"Not authorized\""
-                        }
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-                      "name": "require",
-                      "nodeType": "Identifier",
-                      "overloadedDeclarations": [28149, 28150],
-                      "referencedDeclaration": 28150,
-                      "src": "11265:7:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
-                        "typeString": "function (bool,string memory) pure"
-                      }
-                    },
-                    "id": 11382,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "11265:213:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_tuple$__$",
-                      "typeString": "tuple()"
-                    }
-                  },
-                  "id": 11383,
-                  "nodeType": "ExpressionStatement",
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-                },
-                {
-                  "assignments": [11385],
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-                    {
-                      "constant": false,
-                      "id": 11385,
-                      "name": "oldParams",
-                      "nodeType": "VariableDeclaration",
-                      "scope": 11445,
-                      "src": "11488:17:39",
-                      "stateVariable": false,
-                      "storageLocation": "default",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      },
-                      "typeName": {
-                        "id": 11384,
-                        "name": "uint256",
-                        "nodeType": "ElementaryTypeName",
-                        "src": "11488:7:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      },
-                      "value": null,
-                      "visibility": "internal"
-                    }
-                  ],
-                  "id": 11390,
-                  "initialValue": {
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-                    "expression": {
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-                      "baseExpression": {
-                        "argumentTypes": null,
-                        "id": 11386,
-                        "name": "operators",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 8825,
-                        "src": "11508:9:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_mapping$_t_address_$_t_struct$_Operator_$8834_storage_$",
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-                        "typeString": "uint256"
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-                        "name": "uint256",
-                        "nodeType": "ElementaryTypeName",
-                        "src": "13265:7:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
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-                      "visibility": "internal"
-                    }
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-                        "src": "13282:14:39",
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-                          "typeString": "uint256"
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-                      "lValueRequested": false,
-                      "memberName": "getAmount",
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-                      "src": "13282:24:39",
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-                        "typeString": "function (uint256) pure returns (uint256)"
-                      }
-                    },
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-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
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-                  },
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-                      "src": "13401:6:39",
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-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
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-                    "operator": "=",
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-                      "argumentTypes": null,
-                      "arguments": [
-                        {
-                          "argumentTypes": null,
-                          "arguments": [
-                            {
-                              "argumentTypes": null,
-                              "id": 11493,
-                              "name": "_operator",
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-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 11448,
-                              "src": "13435:9:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
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-                            }
-                          ],
-                          "expression": {
-                            "argumentTypes": [
-                              {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              }
-                            ],
-                            "expression": {
-                              "argumentTypes": null,
-                              "id": 11491,
-                              "name": "topUps",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 11103,
-                              "src": "13421:6:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_Storage_$20159_storage",
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-                            "isLValue": true,
-                            "isPure": false,
-                            "lValueRequested": false,
-                            "memberName": "cancel",
-                            "nodeType": "MemberAccess",
-                            "referencedDeclaration": 20381,
-                            "src": "13421:13:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_function_delegatecall_nonpayable$_t_struct$_Storage_$20159_storage_ptr_$_t_address_$returns$_t_uint256_$bound_to$_t_struct$_Storage_$20159_storage_ptr_$",
-                              "typeString": "function (struct TopUps.Storage storage pointer,address) returns (uint256)"
-                            }
-                          },
-                          "id": 11494,
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": false,
-                          "kind": "functionCall",
-                          "lValueRequested": false,
-                          "names": [],
-                          "nodeType": "FunctionCall",
-                          "src": "13421:24:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_uint256",
-                            "typeString": "uint256"
-                          }
-                        }
-                      ],
-                      "expression": {
-                        "argumentTypes": [
-                          {
-                            "typeIdentifier": "t_uint256",
-                            "typeString": "uint256"
-                          }
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-                          "argumentTypes": null,
-                          "id": 11489,
-                          "name": "amount",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 11483,
-                          "src": "13410:6:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_uint256",
-                            "typeString": "uint256"
-                          }
-                        },
-                        "id": 11490,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "lValueRequested": false,
-                        "memberName": "add",
-                        "nodeType": "MemberAccess",
-                        "referencedDeclaration": 310,
-                        "src": "13410:10:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$",
-                          "typeString": "function (uint256,uint256) pure returns (uint256)"
-                        }
-                      },
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-                      "isLValue": false,
-                      "isPure": false,
-                      "kind": "functionCall",
-                      "lValueRequested": false,
-                      "names": [],
-                      "nodeType": "FunctionCall",
-                      "src": "13410:36:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      }
-                    },
-                    "src": "13401:45:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
-                    }
-                  },
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-                  "nodeType": "ExpressionStatement",
-                  "src": "13401:45:39"
-                },
-                {
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-                    "leftHandSide": {
-                      "argumentTypes": null,
-                      "expression": {
-                        "argumentTypes": null,
-                        "baseExpression": {
-                          "argumentTypes": null,
-                          "id": 11498,
-                          "name": "operators",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 8825,
-                          "src": "13457:9:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_mapping$_t_address_$_t_struct$_Operator_$8834_storage_$",
-                            "typeString": "mapping(address => struct StakeDelegatable.Operator storage ref)"
-                          }
-                        },
-                        "id": 11500,
-                        "indexExpression": {
-                          "argumentTypes": null,
-                          "id": 11499,
-                          "name": "_operator",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 11448,
-                          "src": "13467:9:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_address",
-                            "typeString": "address"
-                          }
-                        },
-                        "isConstant": false,
-                        "isLValue": true,
-                        "isPure": false,
-                        "lValueRequested": false,
-                        "nodeType": "IndexAccess",
-                        "src": "13457:20:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_Operator_$8834_storage",
-                          "typeString": "struct StakeDelegatable.Operator storage ref"
-                        }
-                      },
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-                      "isLValue": true,
-                      "isPure": false,
-                      "lValueRequested": true,
-                      "memberName": "packedParams",
-                      "nodeType": "MemberAccess",
-                      "referencedDeclaration": 8827,
-                      "src": "13457:33:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      }
-                    },
-                    "nodeType": "Assignment",
-                    "operator": "=",
-                    "rightHandSide": {
-                      "argumentTypes": null,
-                      "arguments": [
-                        {
-                          "argumentTypes": null,
-                          "hexValue": "30",
-                          "id": 11504,
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": true,
-                          "kind": "number",
-                          "lValueRequested": false,
-                          "nodeType": "Literal",
-                          "src": "13518:1:39",
-                          "subdenomination": null,
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_rational_0_by_1",
-                            "typeString": "int_const 0"
-                          },
-                          "value": "0"
-                        }
-                      ],
-                      "expression": {
-                        "argumentTypes": [
-                          {
-                            "typeIdentifier": "t_rational_0_by_1",
-                            "typeString": "int_const 0"
-                          }
-                        ],
-                        "expression": {
-                          "argumentTypes": null,
-                          "id": 11502,
-                          "name": "operatorParams",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 11452,
-                          "src": "13493:14:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_uint256",
-                            "typeString": "uint256"
-                          }
-                        },
-                        "id": 11503,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "lValueRequested": false,
-                        "memberName": "setAmount",
-                        "nodeType": "MemberAccess",
-                        "referencedDeclaration": 27930,
-                        "src": "13493:24:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$",
-                          "typeString": "function (uint256,uint256) pure returns (uint256)"
-                        }
-                      },
-                      "id": 11505,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "kind": "functionCall",
-                      "lValueRequested": false,
-                      "names": [],
-                      "nodeType": "FunctionCall",
-                      "src": "13493:27:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      }
-                    },
-                    "src": "13457:63:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
-                    }
-                  },
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-                },
-                {
-                  "expression": {
-                    "argumentTypes": null,
-                    "arguments": [
-                      {
-                        "argumentTypes": null,
-                        "expression": {
-                          "argumentTypes": null,
-                          "baseExpression": {
-                            "argumentTypes": null,
-                            "id": 11509,
-                            "name": "operators",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 8825,
-                            "src": "13548:9:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_mapping$_t_address_$_t_struct$_Operator_$8834_storage_$",
-                              "typeString": "mapping(address => struct StakeDelegatable.Operator storage ref)"
-                            }
-                          },
-                          "id": 11511,
-                          "indexExpression": {
-                            "argumentTypes": null,
-                            "id": 11510,
-                            "name": "_operator",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 11448,
-                            "src": "13558:9:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
-                            }
-                          },
-                          "isConstant": false,
-                          "isLValue": true,
-                          "isPure": false,
-                          "lValueRequested": false,
-                          "nodeType": "IndexAccess",
-                          "src": "13548:20:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_struct$_Operator_$8834_storage",
-                            "typeString": "struct StakeDelegatable.Operator storage ref"
-                          }
-                        },
-                        "id": 11512,
-                        "isConstant": false,
-                        "isLValue": true,
-                        "isPure": false,
-                        "lValueRequested": false,
-                        "memberName": "owner",
-                        "nodeType": "MemberAccess",
-                        "referencedDeclaration": 8829,
-                        "src": "13548:26:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      },
-                      {
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-                        "id": 11513,
-                        "name": "_operator",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11448,
-                        "src": "13576:9:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      },
-                      {
-                        "argumentTypes": null,
-                        "id": 11514,
-                        "name": "amount",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11483,
-                        "src": "13587:6:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      }
-                    ],
-                    "expression": {
-                      "argumentTypes": [
-                        {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        },
-                        {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        },
-                        {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      ],
-                      "id": 11508,
-                      "name": "transferOrDeposit",
-                      "nodeType": "Identifier",
-                      "overloadedDeclarations": [],
-                      "referencedDeclaration": 12434,
-                      "src": "13530:17:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
-                        "typeString": "function (address,address,uint256)"
-                      }
-                    },
-                    "id": 11515,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "13530:64:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_tuple$__$",
-                      "typeString": "tuple()"
-                    }
-                  },
-                  "id": 11516,
-                  "nodeType": "ExpressionStatement",
-                  "src": "13530:64:39"
-                },
-                {
-                  "eventCall": {
-                    "argumentTypes": null,
-                    "arguments": [
-                      {
-                        "argumentTypes": null,
-                        "id": 11518,
-                        "name": "_operator",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11448,
-                        "src": "13625:9:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      }
-                    ],
-                    "expression": {
-                      "argumentTypes": [
-                        {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      ],
-                      "id": 11517,
-                      "name": "RecoveredStake",
-                      "nodeType": "Identifier",
-                      "overloadedDeclarations": [],
-                      "referencedDeclaration": 11055,
-                      "src": "13610:14:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$returns$__$",
-                        "typeString": "function (address)"
-                      }
-                    },
-                    "id": 11519,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "13610:25:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_tuple$__$",
-                      "typeString": "tuple()"
-                    }
-                  },
-                  "id": 11520,
-                  "nodeType": "EmitStatement",
-                  "src": "13605:30:39"
-                }
-              ]
-            },
-            "documentation": "@notice Recovers staked tokens and transfers them back to the owner.\n Recovering tokens can only be performed when the operator finished\n undelegating.\n @param _operator Operator address.",
-            "id": 11522,
-            "implemented": true,
-            "kind": "function",
-            "modifiers": [],
-            "name": "recoverStake",
-            "nodeType": "FunctionDefinition",
-            "parameters": {
-              "id": 11449,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 11448,
-                  "name": "_operator",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 11522,
-                  "src": "12902:17:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 11447,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "12902:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "12901:19:39"
-            },
-            "returnParameters": {
-              "id": 11450,
-              "nodeType": "ParameterList",
-              "parameters": [],
-              "src": "12928:0:39"
-            },
-            "scope": 12435,
-            "src": "12880:762:39",
-            "stateMutability": "nonpayable",
-            "superFunction": null,
-            "visibility": "public"
-          },
-          {
-            "body": {
-              "id": 11540,
-              "nodeType": "Block",
-              "src": "14241:66:39",
-              "statements": [
-                {
-                  "expression": {
-                    "argumentTypes": null,
-                    "arguments": [],
-                    "expression": {
-                      "argumentTypes": [],
-                      "expression": {
-                        "argumentTypes": null,
-                        "expression": {
-                          "argumentTypes": null,
-                          "baseExpression": {
-                            "argumentTypes": null,
-                            "id": 11533,
-                            "name": "operators",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 8825,
-                            "src": "14258:9:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_mapping$_t_address_$_t_struct$_Operator_$8834_storage_$",
-                              "typeString": "mapping(address => struct StakeDelegatable.Operator storage ref)"
-                            }
-                          },
-                          "id": 11535,
-                          "indexExpression": {
-                            "argumentTypes": null,
-                            "id": 11534,
-                            "name": "_operator",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 11524,
-                            "src": "14268:9:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
-                            }
-                          },
-                          "isConstant": false,
-                          "isLValue": true,
-                          "isPure": false,
-                          "lValueRequested": false,
-                          "nodeType": "IndexAccess",
-                          "src": "14258:20:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_struct$_Operator_$8834_storage",
-                            "typeString": "struct StakeDelegatable.Operator storage ref"
-                          }
-                        },
-                        "id": 11536,
-                        "isConstant": false,
-                        "isLValue": true,
-                        "isPure": false,
-                        "lValueRequested": false,
-                        "memberName": "packedParams",
-                        "nodeType": "MemberAccess",
-                        "referencedDeclaration": 8827,
-                        "src": "14258:33:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      },
-                      "id": 11537,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "memberName": "unpack",
-                      "nodeType": "MemberAccess",
-                      "referencedDeclaration": 27895,
-                      "src": "14258:40:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_pure$_t_uint256_$returns$_t_uint256_$_t_uint256_$_t_uint256_$bound_to$_t_uint256_$",
-                        "typeString": "function (uint256) pure returns (uint256,uint256,uint256)"
-                      }
-                    },
-                    "id": 11538,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "14258:42:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_tuple$_t_uint256_$_t_uint256_$_t_uint256_$",
-                      "typeString": "tuple(uint256,uint256,uint256)"
-                    }
-                  },
-                  "functionReturnParameters": 11532,
-                  "id": 11539,
-                  "nodeType": "Return",
-                  "src": "14251:49:39"
-                }
-              ]
-            },
-            "documentation": "@notice Gets stake delegation info for the given operator.\n @param _operator Operator address.\n @return amount The amount of tokens the given operator delegated.\n @return createdAt The time when the stake has been delegated.\n @return undelegatedAt The time when undelegation has been requested.\n If undelegation has not been requested, 0 is returned.",
-            "id": 11541,
-            "implemented": true,
-            "kind": "function",
-            "modifiers": [],
-            "name": "getDelegationInfo",
-            "nodeType": "FunctionDefinition",
-            "parameters": {
-              "id": 11525,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 11524,
-                  "name": "_operator",
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-            ],
-            "name": "lockStake",
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-              "nodeType": "ParameterList",
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-                  "id": 11543,
-                  "name": "operator",
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-                  "scope": 11591,
-                  "src": "14708:16:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
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-                  "typeName": {
-                    "id": 11542,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "14708:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
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-                  "visibility": "internal"
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-                  "constant": false,
-                  "id": 11545,
-                  "name": "duration",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 11591,
-                  "src": "14726:16:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_uint256",
-                    "typeString": "uint256"
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-                  "typeName": {
-                    "id": 11544,
-                    "name": "uint256",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "14726:7:39",
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-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
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-              ],
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-              "src": "14812:0:39"
-            },
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-            "src": "14689:501:39",
-            "stateMutability": "nonpayable",
-            "superFunction": null,
-            "visibility": "public"
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-              "nodeType": "Block",
-              "src": "15876:160:39",
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-                            "name": "operator",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 11593,
-                            "src": "15931:8:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
-                            }
-                          },
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-                              "id": 11599,
-                              "name": "msg",
-                              "nodeType": "Identifier",
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-                              "src": "15941:3:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_magic_message",
-                                "typeString": "msg"
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-                            "isConstant": false,
-                            "isLValue": false,
-                            "isPure": false,
-                            "lValueRequested": false,
-                            "memberName": "sender",
-                            "nodeType": "MemberAccess",
-                            "referencedDeclaration": null,
-                            "src": "15941:10:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_address_payable",
-                              "typeString": "address payable"
-                            }
-                          }
-                        ],
-                        "expression": {
-                          "argumentTypes": [
-                            {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
-                            },
-                            {
-                              "typeIdentifier": "t_address_payable",
-                              "typeString": "address payable"
-                            }
-                          ],
-                          "id": 11597,
-                          "name": "isAuthorizedForOperator",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 1713,
-                          "src": "15907:23:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_function_internal_view$_t_address_$_t_address_$returns$_t_bool_$",
-                            "typeString": "function (address,address) view returns (bool)"
-                          }
-                        },
-                        "id": 11601,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "kind": "functionCall",
-                        "lValueRequested": false,
-                        "names": [],
-                        "nodeType": "FunctionCall",
-                        "src": "15907:45:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_bool",
-                          "typeString": "bool"
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-                        "hexValue": "4e6f7420617574686f72697a6564",
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-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": true,
-                        "kind": "string",
-                        "lValueRequested": false,
-                        "nodeType": "Literal",
-                        "src": "15966:16:39",
-                        "subdenomination": null,
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_stringliteral_fac3bac318c0d00994f57b0f2f4c643c313072b71db2302bf4b900309cc50b36",
-                          "typeString": "literal_string \"Not authorized\""
-                        },
-                        "value": "Not authorized"
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-                    ],
-                    "expression": {
-                      "argumentTypes": [
-                        {
-                          "typeIdentifier": "t_bool",
-                          "typeString": "bool"
-                        },
-                        {
-                          "typeIdentifier": "t_stringliteral_fac3bac318c0d00994f57b0f2f4c643c313072b71db2302bf4b900309cc50b36",
-                          "typeString": "literal_string \"Not authorized\""
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-                      ],
-                      "id": 11596,
-                      "name": "require",
-                      "nodeType": "Identifier",
-                      "overloadedDeclarations": [28149, 28150],
-                      "referencedDeclaration": 28150,
-                      "src": "15886:7:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
-                        "typeString": "function (bool,string memory) pure"
-                      }
-                    },
-                    "id": 11603,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "15886:106:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_tuple$__$",
-                      "typeString": "tuple()"
-                    }
-                  },
-                  "id": 11604,
-                  "nodeType": "ExpressionStatement",
-                  "src": "15886:106:39"
-                },
-                {
-                  "expression": {
-                    "argumentTypes": null,
-                    "arguments": [
-                      {
-                        "argumentTypes": null,
-                        "id": 11608,
-                        "name": "operator",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11593,
-                        "src": "16020:8:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      }
-                    ],
-                    "expression": {
-                      "argumentTypes": [
-                        {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      ],
-                      "expression": {
-                        "argumentTypes": null,
-                        "id": 11605,
-                        "name": "locks",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11101,
-                        "src": "16002:5:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_Storage_$19752_storage",
-                          "typeString": "struct Locks.Storage storage ref"
-                        }
-                      },
-                      "id": 11607,
-                      "isConstant": false,
-                      "isLValue": true,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "memberName": "releaseLock",
-                      "nodeType": "MemberAccess",
-                      "referencedDeclaration": 19821,
-                      "src": "16002:17:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_delegatecall_nonpayable$_t_struct$_Storage_$19752_storage_ptr_$_t_address_$returns$__$bound_to$_t_struct$_Storage_$19752_storage_ptr_$",
-                        "typeString": "function (struct Locks.Storage storage pointer,address)"
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-                    },
-                    "id": 11609,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "16002:27:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_tuple$__$",
-                      "typeString": "tuple()"
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-                  "id": 11610,
-                  "nodeType": "ExpressionStatement",
-                  "src": "16002:27:39"
-                }
-              ]
-            },
-            "documentation": "@notice Removes a lock the caller had previously placed on the operator.\n @dev Only for operator contracts.\n To remove expired or disabled locks, use `releaseExpiredLocks`.\n The authorization check ensures that the caller must have been able\n to place a lock on the operator sometime in the past.\n We don't need to check for current approval status of the caller\n because unlocking stake cannot harm the operator\n nor interfere with other operator contracts.\n Therefore even disabled operator contracts may freely unlock stake.\n @param operator Operator address.",
-            "id": 11612,
-            "implemented": true,
-            "kind": "function",
-            "modifiers": [],
-            "name": "unlockStake",
-            "nodeType": "FunctionDefinition",
-            "parameters": {
-              "id": 11594,
-              "nodeType": "ParameterList",
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-                {
-                  "constant": false,
-                  "id": 11593,
-                  "name": "operator",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 11612,
-                  "src": "15851:16:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 11592,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "15851:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "15850:18:39"
-            },
-            "returnParameters": {
-              "id": 11595,
-              "nodeType": "ParameterList",
-              "parameters": [],
-              "src": "15876:0:39"
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-            "scope": 12435,
-            "src": "15830:206:39",
-            "stateMutability": "nonpayable",
-            "superFunction": null,
-            "visibility": "public"
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-          {
-            "body": {
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-              "nodeType": "Block",
-              "src": "16528:84:39",
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-                        "argumentTypes": null,
-                        "id": 11622,
-                        "name": "operator",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11614,
-                        "src": "16563:8:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      },
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-                        "argumentTypes": null,
-                        "id": 11623,
-                        "name": "operatorContract",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11616,
-                        "src": "16573:16:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      },
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-                        "arguments": [
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-                            "argumentTypes": null,
-                            "id": 11625,
-                            "name": "this",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 28238,
-                            "src": "16599:4:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_contract$_TokenStaking_$12435",
-                              "typeString": "contract TokenStaking"
-                            }
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-                        ],
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-                              "typeIdentifier": "t_contract$_TokenStaking_$12435",
-                              "typeString": "contract TokenStaking"
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-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": true,
-                          "lValueRequested": false,
-                          "nodeType": "ElementaryTypeNameExpression",
-                          "src": "16591:7:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_address_$",
-                            "typeString": "type(address)"
-                          },
-                          "typeName": "address"
-                        },
-                        "id": 11626,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "kind": "typeConversion",
-                        "lValueRequested": false,
-                        "names": [],
-                        "nodeType": "FunctionCall",
-                        "src": "16591:13:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      }
-                    ],
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-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
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-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        },
-                        {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
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-                        "id": 11619,
-                        "name": "locks",
-                        "nodeType": "Identifier",
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-                        "referencedDeclaration": 11101,
-                        "src": "16538:5:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_Storage_$19752_storage",
-                          "typeString": "struct Locks.Storage storage ref"
-                        }
-                      },
-                      "id": 11621,
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-                      "isPure": false,
-                      "lValueRequested": false,
-                      "memberName": "releaseExpiredLock",
-                      "nodeType": "MemberAccess",
-                      "referencedDeclaration": 19888,
-                      "src": "16538:24:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_delegatecall_nonpayable$_t_struct$_Storage_$19752_storage_ptr_$_t_address_$_t_address_$_t_address_$returns$__$bound_to$_t_struct$_Storage_$19752_storage_ptr_$",
-                        "typeString": "function (struct Locks.Storage storage pointer,address,address,address)"
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-                    "id": 11627,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "16538:67:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_tuple$__$",
-                      "typeString": "tuple()"
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-                  "id": 11628,
-                  "nodeType": "ExpressionStatement",
-                  "src": "16538:67:39"
-                }
-              ]
-            },
-            "documentation": "@notice Removes the lock of the specified operator contract\n if the lock has expired or the contract has been disabled.\n @dev Necessary for removing locks placed by contracts\n that have been disabled by the panic button.\n Also applicable to prevent inadvertent DoS of `recoverStake`\n if too many operator contracts have failed to clean up their locks.",
-            "id": 11630,
-            "implemented": true,
-            "kind": "function",
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-            "name": "releaseExpiredLock",
-            "nodeType": "FunctionDefinition",
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-              "id": 11617,
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-              "parameters": [
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-                  "constant": false,
-                  "id": 11614,
-                  "name": "operator",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 11630,
-                  "src": "16465:16:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 11613,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "16465:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                },
-                {
-                  "constant": false,
-                  "id": 11616,
-                  "name": "operatorContract",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 11630,
-                  "src": "16483:24:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 11615,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "16483:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "16464:44:39"
-            },
-            "returnParameters": {
-              "id": 11618,
-              "nodeType": "ParameterList",
-              "parameters": [],
-              "src": "16528:0:39"
-            },
-            "scope": 12435,
-            "src": "16437:175:39",
-            "stateMutability": "nonpayable",
-            "superFunction": null,
-            "visibility": "public"
-          },
-          {
-            "body": {
-              "id": 11645,
-              "nodeType": "Block",
-              "src": "16847:68:39",
-              "statements": [
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-                        "argumentTypes": null,
-                        "id": 11639,
-                        "name": "operator",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11632,
-                        "src": "16884:8:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      },
-                      {
-                        "argumentTypes": null,
-                        "arguments": [
-                          {
-                            "argumentTypes": null,
-                            "id": 11641,
-                            "name": "this",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 28238,
-                            "src": "16902:4:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_contract$_TokenStaking_$12435",
-                              "typeString": "contract TokenStaking"
-                            }
-                          }
-                        ],
-                        "expression": {
-                          "argumentTypes": [
-                            {
-                              "typeIdentifier": "t_contract$_TokenStaking_$12435",
-                              "typeString": "contract TokenStaking"
-                            }
-                          ],
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-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": true,
-                          "lValueRequested": false,
-                          "nodeType": "ElementaryTypeNameExpression",
-                          "src": "16894:7:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_address_$",
-                            "typeString": "type(address)"
-                          },
-                          "typeName": "address"
-                        },
-                        "id": 11642,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "kind": "typeConversion",
-                        "lValueRequested": false,
-                        "names": [],
-                        "nodeType": "FunctionCall",
-                        "src": "16894:13:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      }
-                    ],
-                    "expression": {
-                      "argumentTypes": [
-                        {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        },
-                        {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      ],
-                      "expression": {
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-                        "id": 11637,
-                        "name": "locks",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11101,
-                        "src": "16864:5:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_Storage_$19752_storage",
-                          "typeString": "struct Locks.Storage storage ref"
-                        }
-                      },
-                      "id": 11638,
-                      "isConstant": false,
-                      "isLValue": true,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "memberName": "isStakeLocked",
-                      "nodeType": "MemberAccess",
-                      "referencedDeclaration": 19955,
-                      "src": "16864:19:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_delegatecall_view$_t_struct$_Storage_$19752_storage_ptr_$_t_address_$_t_address_$returns$_t_bool_$bound_to$_t_struct$_Storage_$19752_storage_ptr_$",
-                        "typeString": "function (struct Locks.Storage storage pointer,address,address) view returns (bool)"
-                      }
-                    },
-                    "id": 11643,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "16864:44:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_bool",
-                      "typeString": "bool"
-                    }
-                  },
-                  "functionReturnParameters": 11636,
-                  "id": 11644,
-                  "nodeType": "Return",
-                  "src": "16857:51:39"
-                }
-              ]
-            },
-            "documentation": "@notice Check whether the operator has any active locks\n that haven't expired yet\n and whose creators aren't disabled by the panic button.",
-            "id": 11646,
-            "implemented": true,
-            "kind": "function",
-            "modifiers": [],
-            "name": "isStakeLocked",
-            "nodeType": "FunctionDefinition",
-            "parameters": {
-              "id": 11633,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 11632,
-                  "name": "operator",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 11646,
-                  "src": "16802:16:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
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-                    "id": 11631,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "16802:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "16801:18:39"
-            },
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-              "id": 11636,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 11635,
-                  "name": "",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 11646,
-                  "src": "16841:4:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_bool",
-                    "typeString": "bool"
-                  },
-                  "typeName": {
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-                    "name": "bool",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "16841:4:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_bool",
-                      "typeString": "bool"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "16840:6:39"
-            },
-            "scope": 12435,
-            "src": "16779:136:39",
-            "stateMutability": "view",
-            "superFunction": null,
-            "visibility": "public"
-          },
-          {
-            "body": {
-              "id": 11662,
-              "nodeType": "Block",
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-                  "expression": {
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-                        "name": "operator",
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-                          "typeIdentifier": "t_address",
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-                    ],
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-                        {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      ],
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-                        "name": "locks",
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-                          "typeIdentifier": "t_struct$_Storage_$19752_storage",
-                          "typeString": "struct Locks.Storage storage ref"
-                        }
-                      },
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-                      "isLValue": true,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "memberName": "getLocks",
-                      "nodeType": "MemberAccess",
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-                      "src": "17338:14:39",
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-                        "typeIdentifier": "t_function_delegatecall_view$_t_struct$_Storage_$19752_storage_ptr_$_t_address_$returns$_t_array$_t_address_$dyn_memory_ptr_$_t_array$_t_uint256_$dyn_memory_ptr_$bound_to$_t_struct$_Storage_$19752_storage_ptr_$",
-                        "typeString": "function (struct Locks.Storage storage pointer,address) view returns (address[] memory,uint256[] memory)"
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-                    "isLValue": false,
-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "17338:24:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_tuple$_t_array$_t_address_$dyn_memory_ptr_$_t_array$_t_uint256_$dyn_memory_ptr_$",
-                      "typeString": "tuple(address[] memory,uint256[] memory)"
-                    }
-                  },
-                  "functionReturnParameters": 11656,
-                  "id": 11661,
-                  "nodeType": "Return",
-                  "src": "17331:31:39"
-                }
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-            "documentation": "@notice Get the locks placed on the operator.\n @return creators The addresses of operator contracts\n that have placed a lock on the operator.\n @return expirations The expiration times\n of the locks placed on the operator.",
-            "id": 11663,
-            "implemented": true,
-            "kind": "function",
-            "modifiers": [],
-            "name": "getLocks",
-            "nodeType": "FunctionDefinition",
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-                  "name": "operator",
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-                  "stateVariable": false,
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-                    "typeIdentifier": "t_address",
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-                    "name": "address",
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-                    "stateMutability": "nonpayable",
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-                      "typeIdentifier": "t_address",
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-                  "src": "17260:25:39",
-                  "stateVariable": false,
-                  "storageLocation": "memory",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_array$_t_address_$dyn_memory_ptr",
-                    "typeString": "address[]"
-                  },
-                  "typeName": {
-                    "baseType": {
-                      "id": 11650,
-                      "name": "address",
-                      "nodeType": "ElementaryTypeName",
-                      "src": "17260:7:39",
-                      "stateMutability": "nonpayable",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_address",
-                        "typeString": "address"
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-                    "src": "17260:9:39",
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-                      "typeIdentifier": "t_array$_t_address_$dyn_storage_ptr",
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-                  "constant": false,
-                  "id": 11655,
-                  "name": "expirations",
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-                  "src": "17287:28:39",
-                  "stateVariable": false,
-                  "storageLocation": "memory",
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-                    "typeIdentifier": "t_array$_t_uint256_$dyn_memory_ptr",
-                    "typeString": "uint256[]"
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-                      "id": 11653,
-                      "name": "uint256",
-                      "nodeType": "ElementaryTypeName",
-                      "src": "17287:7:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      }
-                    },
-                    "id": 11654,
-                    "length": null,
-                    "nodeType": "ArrayTypeName",
-                    "src": "17287:9:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr",
-                      "typeString": "uint256[]"
-                    }
-                  },
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-            },
-            "scope": 12435,
-            "src": "17179:190:39",
-            "stateMutability": "view",
-            "superFunction": null,
-            "visibility": "public"
-          },
-          {
-            "body": {
-              "id": 11803,
-              "nodeType": "Block",
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-              "statements": [
-                {
-                  "assignments": [11676],
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-                    {
-                      "constant": false,
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-                      "name": "totalAmountToBurn",
-                      "nodeType": "VariableDeclaration",
-                      "scope": 11803,
-                      "src": "17829:25:39",
-                      "stateVariable": false,
-                      "storageLocation": "default",
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-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
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-                        "id": 11675,
-                        "name": "uint256",
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-                        "src": "17829:7:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      },
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-                      "visibility": "internal"
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-                  ],
-                  "id": 11677,
-                  "initialValue": null,
-                  "nodeType": "VariableDeclarationStatement",
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-                },
-                {
-                  "assignments": [11679],
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-                    {
-                      "constant": false,
-                      "id": 11679,
-                      "name": "authoritySource",
-                      "nodeType": "VariableDeclaration",
-                      "scope": 11803,
-                      "src": "17864:23:39",
-                      "stateVariable": false,
-                      "storageLocation": "default",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_address",
-                        "typeString": "address"
-                      },
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-                        "id": 11678,
-                        "name": "address",
-                        "nodeType": "ElementaryTypeName",
-                        "src": "17864:7:39",
-                        "stateMutability": "nonpayable",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
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-                  ],
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-                          "id": 11681,
-                          "name": "msg",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 28146,
-                          "src": "17909:3:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_magic_message",
-                            "typeString": "msg"
-                          }
-                        },
-                        "id": 11682,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "lValueRequested": false,
-                        "memberName": "sender",
-                        "nodeType": "MemberAccess",
-                        "referencedDeclaration": null,
-                        "src": "17909:10:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address_payable",
-                          "typeString": "address payable"
-                        }
-                      }
-                    ],
-                    "expression": {
-                      "argumentTypes": [
-                        {
-                          "typeIdentifier": "t_address_payable",
-                          "typeString": "address payable"
-                        }
-                      ],
-                      "id": 11680,
-                      "name": "getAuthoritySource",
-                      "nodeType": "Identifier",
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-                      "referencedDeclaration": 1782,
-                      "src": "17890:18:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_view$_t_address_$returns$_t_address_$",
-                        "typeString": "function (address) view returns (address)"
-                      }
-                    },
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-                    "isConstant": false,
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-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "17890:30:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
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-                },
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-                            "name": "operator",
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-                            "src": "18001:16:39",
-                            "stateVariable": false,
-                            "storageLocation": "default",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
-                            },
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-                              "name": "address",
-                              "nodeType": "ElementaryTypeName",
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-                              "stateMutability": "nonpayable",
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-                            "name": "misbehavedOperators",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 11668,
-                            "src": "18020:19:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_array$_t_address_$dyn_memory_ptr",
-                              "typeString": "address[] memory"
-                            }
-                          },
-                          "id": 11700,
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-                            "name": "i",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 11686,
-                            "src": "18040:1:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          },
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-                          "isLValue": true,
-                          "isPure": false,
-                          "lValueRequested": false,
-                          "nodeType": "IndexAccess",
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-                          "typeDescriptions": {
-                            "typeIdentifier": "t_address",
-                            "typeString": "address"
-                          }
-                        },
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-                      },
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-                                  "name": "authorizations",
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-                                  "src": "18081:14:39",
-                                  "typeDescriptions": {
-                                    "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$",
-                                    "typeString": "mapping(address => mapping(address => bool))"
-                                  }
-                                },
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-                                  "name": "authoritySource",
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-                                  "src": "18096:15:39",
-                                  "typeDescriptions": {
-                                    "typeIdentifier": "t_address",
-                                    "typeString": "address"
-                                  }
-                                },
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-                                  "typeIdentifier": "t_mapping$_t_address_$_t_bool_$",
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-                                  "typeIdentifier": "t_address",
-                                  "typeString": "address"
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-                              }
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-                              "kind": "string",
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-                                "typeString": "literal_string \"Not authorized\""
-                              },
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-                                "typeIdentifier": "t_bool",
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-                                "typeString": "literal_string \"Not authorized\""
-                              }
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-                              "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
-                              "typeString": "function (bool,string memory) pure"
-                            }
-                          },
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-                            "stateVariable": false,
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-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
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-                                "typeIdentifier": "t_uint256",
-                                "typeString": "uint256"
-                              }
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-                        ],
-                        "id": 11717,
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-                              "name": "operators",
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-                              "referencedDeclaration": 8825,
-                              "src": "18210:9:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_mapping$_t_address_$_t_struct$_Operator_$8834_storage_$",
-                                "typeString": "mapping(address => struct StakeDelegatable.Operator storage ref)"
-                              }
-                            },
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-                              "id": 11714,
-                              "name": "operator",
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-                              "typeDescriptions": {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              }
-                            },
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-                            "nodeType": "IndexAccess",
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-                            "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_Operator_$8834_storage",
-                              "typeString": "struct StakeDelegatable.Operator storage ref"
-                            }
-                          },
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-                          "isLValue": true,
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-                          "lValueRequested": false,
-                          "memberName": "packedParams",
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-                                    "referencedDeclaration": 11665,
-                                    "src": "19080:13:39",
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-                                      "typeIdentifier": "t_uint256",
-                                      "typeString": "uint256"
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-                                      "typeIdentifier": "t_address",
-                                      "typeString": "address"
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-                                      "typeIdentifier": "t_uint256",
-                                      "typeString": "uint256"
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-                                  "typeDescriptions": {
-                                    "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$returns$__$",
-                                    "typeString": "function (address,uint256)"
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-                                      "subdenomination": null,
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-                                      "value": "0"
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-                                      "referencedDeclaration": 11712,
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-                                "src": "18666:62:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_uint256",
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-                              },
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-                              "nodeType": "ExpressionStatement",
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-                            },
-                            {
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-                                "arguments": [
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-                                    "name": "operator",
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-                                    "src": "18765:8:39",
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-                                      "typeIdentifier": "t_address",
-                                      "typeString": "address"
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-                                    "name": "currentAmount",
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-                                    "src": "18775:13:39",
-                                    "typeDescriptions": {
-                                      "typeIdentifier": "t_uint256",
-                                      "typeString": "uint256"
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-                                  }
-                                ],
-                                "expression": {
-                                  "argumentTypes": [
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-                                      "typeIdentifier": "t_address",
-                                      "typeString": "address"
-                                    },
-                                    {
-                                      "typeIdentifier": "t_uint256",
-                                      "typeString": "uint256"
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-                                  ],
-                                  "id": 11762,
-                                  "name": "TokensSlashed",
-                                  "nodeType": "Identifier",
-                                  "overloadedDeclarations": [],
-                                  "referencedDeclaration": 11061,
-                                  "src": "18751:13:39",
-                                  "typeDescriptions": {
-                                    "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$returns$__$",
-                                    "typeString": "function (address,uint256)"
-                                  }
-                                },
-                                "id": 11765,
-                                "isConstant": false,
-                                "isLValue": false,
-                                "isPure": false,
-                                "kind": "functionCall",
-                                "lValueRequested": false,
-                                "names": [],
-                                "nodeType": "FunctionCall",
-                                "src": "18751:38:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_tuple$__$",
-                                  "typeString": "tuple()"
-                                }
-                              },
-                              "id": 11766,
-                              "nodeType": "EmitStatement",
-                              "src": "18746:43:39"
-                            }
-                          ]
-                        }
-                      }
-                    ]
-                  },
-                  "condition": {
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-                      "src": "17950:1:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      }
-                    },
-                    "nodeType": "BinaryOperation",
-                    "operator": "<",
-                    "rightExpression": {
-                      "argumentTypes": null,
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-                        "argumentTypes": null,
-                        "id": 11690,
-                        "name": "misbehavedOperators",
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-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11668,
-                        "src": "17954:19:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_address_$dyn_memory_ptr",
-                          "typeString": "address[] memory"
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-                      },
-                      "id": 11691,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "memberName": "length",
-                      "nodeType": "MemberAccess",
-                      "referencedDeclaration": null,
-                      "src": "17954:26:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      }
-                    },
-                    "src": "17950:30:39",
-                    "typeDescriptions": {
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-                      "typeString": "bool"
-                    }
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-                        "id": 11686,
-                        "name": "i",
-                        "nodeType": "VariableDeclaration",
-                        "scope": 11796,
-                        "src": "17935:9:39",
-                        "stateVariable": false,
-                        "storageLocation": "default",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        },
-                        "typeName": {
-                          "id": 11685,
-                          "name": "uint256",
-                          "nodeType": "ElementaryTypeName",
-                          "src": "17935:7:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_uint256",
-                            "typeString": "uint256"
-                          }
-                        },
-                        "value": null,
-                        "visibility": "internal"
-                      }
-                    ],
-                    "id": 11688,
-                    "initialValue": {
-                      "argumentTypes": null,
-                      "hexValue": "30",
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-                      "isLValue": false,
-                      "isPure": true,
-                      "kind": "number",
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-                      "src": "17947:1:39",
-                      "subdenomination": null,
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_rational_0_by_1",
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-                      "value": "0"
-                    },
-                    "nodeType": "VariableDeclarationStatement",
-                    "src": "17935:13:39"
-                  },
-                  "loopExpression": {
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-                      "id": 11694,
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-                      "nodeType": "UnaryOperation",
-                      "operator": "++",
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-                      "src": "17982:3:39",
-                      "subExpression": {
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-                        "id": 11693,
-                        "name": "i",
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-                        "referencedDeclaration": 11686,
-                        "src": "17982:1:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      },
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      }
-                    },
-                    "id": 11695,
-                    "nodeType": "ExpressionStatement",
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-                  },
-                  "nodeType": "ForStatement",
-                  "src": "17930:1189:39"
-                },
-                {
-                  "expression": {
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-                    "arguments": [
-                      {
-                        "argumentTypes": null,
-                        "id": 11800,
-                        "name": "totalAmountToBurn",
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-                        "referencedDeclaration": 11676,
-                        "src": "19140:17:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      }
-                    ],
-                    "expression": {
-                      "argumentTypes": [
-                        {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      ],
-                      "expression": {
-                        "argumentTypes": null,
-                        "id": 11797,
-                        "name": "token",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11093,
-                        "src": "19129:5:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_contract$_ERC20Burnable_$1023",
-                          "typeString": "contract ERC20Burnable"
-                        }
-                      },
-                      "id": 11799,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "memberName": "burn",
-                      "nodeType": "MemberAccess",
-                      "referencedDeclaration": 1009,
-                      "src": "19129:10:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_external_nonpayable$_t_uint256_$returns$__$",
-                        "typeString": "function (uint256) external"
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-                    },
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-                    "kind": "functionCall",
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-                    "src": "19129:29:39",
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-                      "typeString": "tuple()"
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-                  },
-                  "id": 11802,
-                  "nodeType": "ExpressionStatement",
-                  "src": "19129:29:39"
-                }
-              ]
-            },
-            "documentation": "@notice Slash provided token amount from every member in the misbehaved\n operators array and burn 100% of all the tokens.\n @param amountToSlash Token amount to slash from every misbehaved operator.\n @param misbehavedOperators Array of addresses to seize the tokens from.",
-            "id": 11804,
-            "implemented": true,
-            "kind": "function",
-            "modifiers": [
-              {
-                "arguments": [
-                  {
-                    "argumentTypes": null,
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-                      "name": "msg",
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-                      "overloadedDeclarations": [],
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-                      "src": "17803:3:39",
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-                        "typeIdentifier": "t_magic_message",
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-                    },
-                    "id": 11672,
-                    "isConstant": false,
-                    "isLValue": false,
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-                    "memberName": "sender",
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-                    "referencedDeclaration": null,
-                    "src": "17803:10:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address_payable",
-                      "typeString": "address payable"
-                    }
-                  }
-                ],
-                "id": 11673,
-                "modifierName": {
-                  "argumentTypes": null,
-                  "id": 11670,
-                  "name": "onlyApprovedOperatorContract",
-                  "nodeType": "Identifier",
-                  "overloadedDeclarations": [],
-                  "referencedDeclaration": 1640,
-                  "src": "17774:28:39",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_modifier$_t_address_$",
-                    "typeString": "modifier (address)"
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-                },
-                "nodeType": "ModifierInvocation",
-                "src": "17774:40:39"
-              }
-            ],
-            "name": "slash",
-            "nodeType": "FunctionDefinition",
-            "parameters": {
-              "id": 11669,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 11665,
-                  "name": "amountToSlash",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 11804,
-                  "src": "17690:21:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_uint256",
-                    "typeString": "uint256"
-                  },
-                  "typeName": {
-                    "id": 11664,
-                    "name": "uint256",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "17690:7:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
-                    }
-                  },
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-                  "visibility": "internal"
-                },
-                {
-                  "constant": false,
-                  "id": 11668,
-                  "name": "misbehavedOperators",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 11804,
-                  "src": "17713:36:39",
-                  "stateVariable": false,
-                  "storageLocation": "memory",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_array$_t_address_$dyn_memory_ptr",
-                    "typeString": "address[]"
-                  },
-                  "typeName": {
-                    "baseType": {
-                      "id": 11666,
-                      "name": "address",
-                      "nodeType": "ElementaryTypeName",
-                      "src": "17713:7:39",
-                      "stateMutability": "nonpayable",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_address",
-                        "typeString": "address"
-                      }
-                    },
-                    "id": 11667,
-                    "length": null,
-                    "nodeType": "ArrayTypeName",
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-                                      "hexValue": "30",
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-                                      "src": "20840:1:39",
-                                      "subdenomination": null,
-                                      "typeDescriptions": {
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-                                      "value": "0"
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-                                      "referencedDeclaration": 11857,
-                                      "src": "20815:14:39",
-                                      "typeDescriptions": {
-                                        "typeIdentifier": "t_uint256",
-                                        "typeString": "uint256"
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-                                    "lValueRequested": false,
-                                    "memberName": "setAmount",
-                                    "nodeType": "MemberAccess",
-                                    "referencedDeclaration": 27930,
-                                    "src": "20815:24:39",
-                                    "typeDescriptions": {
-                                      "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$",
-                                      "typeString": "function (uint256,uint256) pure returns (uint256)"
-                                    }
-                                  },
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-                                  "kind": "functionCall",
-                                  "lValueRequested": false,
-                                  "names": [],
-                                  "nodeType": "FunctionCall",
-                                  "src": "20815:27:39",
-                                  "typeDescriptions": {
-                                    "typeIdentifier": "t_uint256",
-                                    "typeString": "uint256"
-                                  }
-                                },
-                                "src": "20780:62:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_uint256",
-                                  "typeString": "uint256"
-                                }
-                              },
-                              "id": 11906,
-                              "nodeType": "ExpressionStatement",
-                              "src": "20780:62:39"
-                            },
-                            {
-                              "eventCall": {
-                                "argumentTypes": null,
-                                "arguments": [
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-                                    "argumentTypes": null,
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-                                    "name": "operator",
-                                    "nodeType": "Identifier",
-                                    "overloadedDeclarations": [],
-                                    "referencedDeclaration": 11842,
-                                    "src": "20878:8:39",
-                                    "typeDescriptions": {
-                                      "typeIdentifier": "t_address",
-                                      "typeString": "address"
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-                                  },
-                                  {
-                                    "argumentTypes": null,
-                                    "id": 11909,
-                                    "name": "currentAmount",
-                                    "nodeType": "Identifier",
-                                    "overloadedDeclarations": [],
-                                    "referencedDeclaration": 11882,
-                                    "src": "20888:13:39",
-                                    "typeDescriptions": {
-                                      "typeIdentifier": "t_uint256",
-                                      "typeString": "uint256"
-                                    }
-                                  }
-                                ],
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-                                  "argumentTypes": [
-                                    {
-                                      "typeIdentifier": "t_address",
-                                      "typeString": "address"
-                                    },
-                                    {
-                                      "typeIdentifier": "t_uint256",
-                                      "typeString": "uint256"
-                                    }
-                                  ],
-                                  "id": 11907,
-                                  "name": "TokensSeized",
-                                  "nodeType": "Identifier",
-                                  "overloadedDeclarations": [],
-                                  "referencedDeclaration": 11067,
-                                  "src": "20865:12:39",
-                                  "typeDescriptions": {
-                                    "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$returns$__$",
-                                    "typeString": "function (address,uint256)"
-                                  }
-                                },
-                                "id": 11910,
-                                "isConstant": false,
-                                "isLValue": false,
-                                "isPure": false,
-                                "kind": "functionCall",
-                                "lValueRequested": false,
-                                "names": [],
-                                "nodeType": "FunctionCall",
-                                "src": "20865:37:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_tuple$__$",
-                                  "typeString": "tuple()"
-                                }
-                              },
-                              "id": 11911,
-                              "nodeType": "EmitStatement",
-                              "src": "20860:42:39"
-                            }
-                          ]
-                        }
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-                  "condition": {
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-                      "id": 11834,
-                      "name": "i",
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-                      "src": "20064:1:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      }
-                    },
-                    "nodeType": "BinaryOperation",
-                    "operator": "<",
-                    "rightExpression": {
-                      "argumentTypes": null,
-                      "expression": {
-                        "argumentTypes": null,
-                        "id": 11835,
-                        "name": "misbehavedOperators",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11813,
-                        "src": "20068:19:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_address_$dyn_memory_ptr",
-                          "typeString": "address[] memory"
-                        }
-                      },
-                      "id": 11836,
-                      "isConstant": false,
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-                      "lValueRequested": false,
-                      "memberName": "length",
-                      "nodeType": "MemberAccess",
-                      "referencedDeclaration": null,
-                      "src": "20068:26:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      }
-                    },
-                    "src": "20064:30:39",
-                    "typeDescriptions": {
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-                      "typeString": "bool"
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-                  },
-                  "id": 11941,
-                  "initializationExpression": {
-                    "assignments": [11831],
-                    "declarations": [
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-                        "constant": false,
-                        "id": 11831,
-                        "name": "i",
-                        "nodeType": "VariableDeclaration",
-                        "scope": 11941,
-                        "src": "20049:9:39",
-                        "stateVariable": false,
-                        "storageLocation": "default",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        },
-                        "typeName": {
-                          "id": 11830,
-                          "name": "uint256",
-                          "nodeType": "ElementaryTypeName",
-                          "src": "20049:7:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_uint256",
-                            "typeString": "uint256"
-                          }
-                        },
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-                    ],
-                    "id": 11833,
-                    "initialValue": {
-                      "argumentTypes": null,
-                      "hexValue": "30",
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-                      "nodeType": "Literal",
-                      "src": "20061:1:39",
-                      "subdenomination": null,
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_rational_0_by_1",
-                        "typeString": "int_const 0"
-                      },
-                      "value": "0"
-                    },
-                    "nodeType": "VariableDeclarationStatement",
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-                  },
-                  "loopExpression": {
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-                      "argumentTypes": null,
-                      "id": 11839,
-                      "isConstant": false,
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-                      "lValueRequested": false,
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-                      "src": "20096:3:39",
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-                        "argumentTypes": null,
-                        "id": 11838,
-                        "name": "i",
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-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11831,
-                        "src": "20096:1:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      },
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      }
-                    },
-                    "id": 11840,
-                    "nodeType": "ExpressionStatement",
-                    "src": "20096:3:39"
-                  },
-                  "nodeType": "ForStatement",
-                  "src": "20044:1187:39"
-                },
-                {
-                  "assignments": [11943],
-                  "declarations": [
-                    {
-                      "constant": false,
-                      "id": 11943,
-                      "name": "tattletaleReward",
-                      "nodeType": "VariableDeclaration",
-                      "scope": 11969,
-                      "src": "21241:24:39",
-                      "stateVariable": false,
-                      "storageLocation": "default",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      },
-                      "typeName": {
-                        "id": 11942,
-                        "name": "uint256",
-                        "nodeType": "ElementaryTypeName",
-                        "src": "21241:7:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      },
-                      "value": null,
-                      "visibility": "internal"
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-                  ],
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-                  "initialValue": {
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-                    "arguments": [
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-                        "argumentTypes": null,
-                        "id": 11950,
-                        "name": "rewardMultiplier",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11808,
-                        "src": "21319:16:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      }
-                    ],
-                    "expression": {
-                      "argumentTypes": [
-                        {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      ],
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-                        "components": [
-                          {
-                            "argumentTypes": null,
-                            "arguments": [
-                              {
-                                "argumentTypes": null,
-                                "hexValue": "35",
-                                "id": 11946,
-                                "isConstant": false,
-                                "isLValue": false,
-                                "isPure": true,
-                                "kind": "number",
-                                "lValueRequested": false,
-                                "nodeType": "Literal",
-                                "src": "21307:1:39",
-                                "subdenomination": null,
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_rational_5_by_1",
-                                  "typeString": "int_const 5"
-                                },
-                                "value": "5"
-                              }
-                            ],
-                            "expression": {
-                              "argumentTypes": [
-                                {
-                                  "typeIdentifier": "t_rational_5_by_1",
-                                  "typeString": "int_const 5"
-                                }
-                              ],
-                              "expression": {
-                                "argumentTypes": null,
-                                "id": 11944,
-                                "name": "totalAmountToBurn",
-                                "nodeType": "Identifier",
-                                "overloadedDeclarations": [],
-                                "referencedDeclaration": 11821,
-                                "src": "21281:17:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_uint256",
-                                  "typeString": "uint256"
-                                }
-                              },
-                              "id": 11945,
-                              "isConstant": false,
-                              "isLValue": false,
-                              "isPure": false,
-                              "lValueRequested": false,
-                              "memberName": "percent",
-                              "nodeType": "MemberAccess",
-                              "referencedDeclaration": 28042,
-                              "src": "21281:25:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$",
-                                "typeString": "function (uint256,uint256) pure returns (uint256)"
-                              }
-                            },
-                            "id": 11947,
-                            "isConstant": false,
-                            "isLValue": false,
-                            "isPure": false,
-                            "kind": "functionCall",
-                            "lValueRequested": false,
-                            "names": [],
-                            "nodeType": "FunctionCall",
-                            "src": "21281:28:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          }
-                        ],
-                        "id": 11948,
-                        "isConstant": false,
-                        "isInlineArray": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "lValueRequested": false,
-                        "nodeType": "TupleExpression",
-                        "src": "21280:30:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      },
-                      "id": 11949,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "memberName": "percent",
-                      "nodeType": "MemberAccess",
-                      "referencedDeclaration": 28042,
-                      "src": "21280:38:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$",
-                        "typeString": "function (uint256,uint256) pure returns (uint256)"
-                      }
-                    },
-                    "id": 11951,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "21280:56:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
-                    }
-                  },
-                  "nodeType": "VariableDeclarationStatement",
-                  "src": "21241:95:39"
-                },
-                {
-                  "expression": {
-                    "argumentTypes": null,
-                    "arguments": [
-                      {
-                        "argumentTypes": null,
-                        "id": 11956,
-                        "name": "tattletale",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11810,
-                        "src": "21366:10:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      },
-                      {
-                        "argumentTypes": null,
-                        "id": 11957,
-                        "name": "tattletaleReward",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11943,
-                        "src": "21378:16:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      }
-                    ],
-                    "expression": {
-                      "argumentTypes": [
-                        {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        },
-                        {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      ],
-                      "expression": {
-                        "argumentTypes": null,
-                        "id": 11953,
-                        "name": "token",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11093,
-                        "src": "21347:5:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_contract$_ERC20Burnable_$1023",
-                          "typeString": "contract ERC20Burnable"
-                        }
-                      },
-                      "id": 11955,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "memberName": "safeTransfer",
-                      "nodeType": "MemberAccess",
-                      "referencedDeclaration": 1183,
-                      "src": "21347:18:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_nonpayable$_t_contract$_IERC20_$1150_$_t_address_$_t_uint256_$returns$__$bound_to$_t_contract$_IERC20_$1150_$",
-                        "typeString": "function (contract IERC20,address,uint256)"
-                      }
-                    },
-                    "id": 11958,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "21347:48:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_tuple$__$",
-                      "typeString": "tuple()"
-                    }
-                  },
-                  "id": 11959,
-                  "nodeType": "ExpressionStatement",
-                  "src": "21347:48:39"
-                },
-                {
-                  "expression": {
-                    "argumentTypes": null,
-                    "arguments": [
-                      {
-                        "argumentTypes": null,
-                        "arguments": [
-                          {
-                            "argumentTypes": null,
-                            "id": 11965,
-                            "name": "tattletaleReward",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 11943,
-                            "src": "21438:16:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          }
-                        ],
-                        "expression": {
-                          "argumentTypes": [
-                            {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          ],
-                          "expression": {
-                            "argumentTypes": null,
-                            "id": 11963,
-                            "name": "totalAmountToBurn",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 11821,
-                            "src": "21416:17:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          },
-                          "id": 11964,
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": false,
-                          "lValueRequested": false,
-                          "memberName": "sub",
-                          "nodeType": "MemberAccess",
-                          "referencedDeclaration": 326,
-                          "src": "21416:21:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$",
-                            "typeString": "function (uint256,uint256) pure returns (uint256)"
-                          }
-                        },
-                        "id": 11966,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "kind": "functionCall",
-                        "lValueRequested": false,
-                        "names": [],
-                        "nodeType": "FunctionCall",
-                        "src": "21416:39:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      }
-                    ],
-                    "expression": {
-                      "argumentTypes": [
-                        {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      ],
-                      "expression": {
-                        "argumentTypes": null,
-                        "id": 11960,
-                        "name": "token",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11093,
-                        "src": "21405:5:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_contract$_ERC20Burnable_$1023",
-                          "typeString": "contract ERC20Burnable"
-                        }
-                      },
-                      "id": 11962,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "memberName": "burn",
-                      "nodeType": "MemberAccess",
-                      "referencedDeclaration": 1009,
-                      "src": "21405:10:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_external_nonpayable$_t_uint256_$returns$__$",
-                        "typeString": "function (uint256) external"
-                      }
-                    },
-                    "id": 11967,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "21405:51:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_tuple$__$",
-                      "typeString": "tuple()"
-                    }
-                  },
-                  "id": 11968,
-                  "nodeType": "ExpressionStatement",
-                  "src": "21405:51:39"
-                }
-              ]
-            },
-            "documentation": "@notice Seize provided token amount from every member in the misbehaved\n operators array. The tattletale is rewarded with 5% of the total seized\n amount scaled by the reward adjustment parameter and the rest 95% is burned.\n @param amountToSeize Token amount to seize from every misbehaved operator.\n @param rewardMultiplier Reward adjustment in percentage. Min 1% and 100% max.\n @param tattletale Address to receive the 5% reward.\n @param misbehavedOperators Array of addresses to seize the tokens from.",
-            "id": 11970,
-            "implemented": true,
-            "kind": "function",
-            "modifiers": [
-              {
-                "arguments": [
-                  {
-                    "argumentTypes": null,
-                    "expression": {
-                      "argumentTypes": null,
-                      "id": 11816,
-                      "name": "msg",
-                      "nodeType": "Identifier",
-                      "overloadedDeclarations": [],
-                      "referencedDeclaration": 28146,
-                      "src": "19921:3:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_magic_message",
-                        "typeString": "msg"
-                      }
-                    },
-                    "id": 11817,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "lValueRequested": false,
-                    "memberName": "sender",
-                    "nodeType": "MemberAccess",
-                    "referencedDeclaration": null,
-                    "src": "19921:10:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address_payable",
-                      "typeString": "address payable"
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-                  "name": "onlyApprovedOperatorContract",
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-                      "typeIdentifier": "t_array$_t_address_$dyn_storage_ptr",
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-                            "typeIdentifier": "t_address",
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-                          "typeIdentifier": "t_address",
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-                          "typeIdentifier": "t_address",
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-                    "src": "21758:7:39",
-                    "stateMutability": "nonpayable",
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-                        "name": "uint256",
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-                          "typeIdentifier": "t_uint256",
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-                        "src": "22748:9:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_mapping$_t_address_$_t_struct$_Operator_$8834_storage_$",
-                          "typeString": "mapping(address => struct StakeDelegatable.Operator storage ref)"
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-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
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-                      "leftExpression": {
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-                        "arguments": [
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-                            "name": "_operator",
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-                            "referencedDeclaration": 12003,
-                            "src": "23247:9:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
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-                          },
-                          {
-                            "argumentTypes": null,
-                            "id": 12019,
-                            "name": "_operatorContract",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 12005,
-                            "src": "23258:17:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
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-                            {
-                              "typeIdentifier": "t_address",
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-                              "typeIdentifier": "t_address",
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-                          "name": "isAuthorizedForOperator",
-                          "nodeType": "Identifier",
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-                          "src": "23223:23:39",
-                          "typeDescriptions": {
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-                            "typeString": "function (address,address) view returns (bool)"
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-                        "kind": "functionCall",
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-                        "src": "23223:53:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_bool",
-                          "typeString": "bool"
-                        }
-                      },
-                      "nodeType": "BinaryOperation",
-                      "operator": "&&",
-                      "rightExpression": {
-                        "argumentTypes": null,
-                        "arguments": [
-                          {
-                            "argumentTypes": null,
-                            "id": 12022,
-                            "name": "operatorParams",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 12011,
-                            "src": "23307:14:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          }
-                        ],
-                        "expression": {
-                          "argumentTypes": [
-                            {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          ],
-                          "id": 12021,
-                          "name": "_isInitialized",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 12314,
-                          "src": "23292:14:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_bool_$",
-                            "typeString": "function (uint256) view returns (bool)"
-                          }
-                        },
-                        "id": 12023,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "kind": "functionCall",
-                        "lValueRequested": false,
-                        "names": [],
-                        "nodeType": "FunctionCall",
-                        "src": "23292:30:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_bool",
-                          "typeString": "bool"
-                        }
-                      },
-                      "src": "23223:99:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_bool",
-                        "typeString": "bool"
-                      }
-                    },
-                    "nodeType": "BinaryOperation",
-                    "operator": "&&",
-                    "rightExpression": {
-                      "argumentTypes": null,
-                      "id": 12028,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "nodeType": "UnaryOperation",
-                      "operator": "!",
-                      "prefix": true,
-                      "src": "23338:32:39",
-                      "subExpression": {
-                        "argumentTypes": null,
-                        "arguments": [
-                          {
-                            "argumentTypes": null,
-                            "id": 12026,
-                            "name": "operatorParams",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 12011,
-                            "src": "23355:14:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          }
-                        ],
-                        "expression": {
-                          "argumentTypes": [
-                            {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          ],
-                          "id": 12025,
-                          "name": "_isUndelegating",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 12339,
-                          "src": "23339:15:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_bool_$",
-                            "typeString": "function (uint256) view returns (bool)"
-                          }
-                        },
-                        "id": 12027,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "kind": "functionCall",
-                        "lValueRequested": false,
-                        "names": [],
-                        "nodeType": "FunctionCall",
-                        "src": "23339:31:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_bool",
-                          "typeString": "bool"
-                        }
-                      },
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_bool",
-                        "typeString": "bool"
-                      }
-                    },
-                    "src": "23223:147:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_bool",
-                      "typeString": "bool"
-                    }
-                  },
-                  "falseBody": null,
-                  "id": 12037,
-                  "nodeType": "IfStatement",
-                  "src": "23206:236:39",
-                  "trueBody": {
-                    "id": 12036,
-                    "nodeType": "Block",
-                    "src": "23381:61:39",
-                    "statements": [
-                      {
-                        "expression": {
-                          "argumentTypes": null,
-                          "id": 12034,
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": false,
-                          "lValueRequested": false,
-                          "leftHandSide": {
-                            "argumentTypes": null,
-                            "id": 12030,
-                            "name": "balance",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 12008,
-                            "src": "23395:7:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          },
-                          "nodeType": "Assignment",
-                          "operator": "=",
-                          "rightHandSide": {
-                            "argumentTypes": null,
-                            "arguments": [],
-                            "expression": {
-                              "argumentTypes": [],
-                              "expression": {
-                                "argumentTypes": null,
-                                "id": 12031,
-                                "name": "operatorParams",
-                                "nodeType": "Identifier",
-                                "overloadedDeclarations": [],
-                                "referencedDeclaration": 12011,
-                                "src": "23405:14:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_uint256",
-                                  "typeString": "uint256"
-                                }
-                              },
-                              "id": 12032,
-                              "isConstant": false,
-                              "isLValue": false,
-                              "isPure": false,
-                              "lValueRequested": false,
-                              "memberName": "getAmount",
-                              "nodeType": "MemberAccess",
-                              "referencedDeclaration": 27910,
-                              "src": "23405:24:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_function_internal_pure$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$",
-                                "typeString": "function (uint256) pure returns (uint256)"
-                              }
-                            },
-                            "id": 12033,
-                            "isConstant": false,
-                            "isLValue": false,
-                            "isPure": false,
-                            "kind": "functionCall",
-                            "lValueRequested": false,
-                            "names": [],
-                            "nodeType": "FunctionCall",
-                            "src": "23405:26:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          },
-                          "src": "23395:36:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_uint256",
-                            "typeString": "uint256"
-                          }
-                        },
-                        "id": 12035,
-                        "nodeType": "ExpressionStatement",
-                        "src": "23395:36:39"
-                      }
-                    ]
-                  }
-                }
-              ]
-            },
-            "documentation": "@notice Gets the eligible stake balance of the specified address.\n An eligible stake is a stake that passed the initialization period\n and is not currently undelegating. Also, the operator had to approve\n the specified operator contract.\n\n    /// Operator with a minimum required amount of eligible stake can join the\n network and participate in new work selection.\n\n    /// @param _operator address of stake operator.\n @param _operatorContract address of operator contract.\n @return an uint256 representing the eligible stake balance.",
-            "id": 12039,
-            "implemented": true,
-            "kind": "function",
-            "modifiers": [],
-            "name": "eligibleStake",
-            "nodeType": "FunctionDefinition",
-            "parameters": {
-              "id": 12006,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 12003,
-                  "name": "_operator",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12039,
-                  "src": "22601:17:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 12002,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "22601:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                },
-                {
-                  "constant": false,
-                  "id": 12005,
-                  "name": "_operatorContract",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12039,
-                  "src": "22620:25:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 12004,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "22620:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "22600:46:39"
-            },
-            "returnParameters": {
-              "id": 12009,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 12008,
-                  "name": "balance",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12039,
-                  "src": "22692:15:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_uint256",
-                    "typeString": "uint256"
-                  },
-                  "typeName": {
-                    "id": 12007,
-                    "name": "uint256",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "22692:7:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "22691:17:39"
-            },
-            "scope": 12435,
-            "src": "22578:870:39",
-            "stateMutability": "view",
-            "superFunction": null,
-            "visibility": "public"
-          },
-          {
-            "body": {
-              "id": 12078,
-              "nodeType": "Block",
-              "src": "24584:351:39",
-              "statements": [
-                {
-                  "assignments": [12049],
-                  "declarations": [
-                    {
-                      "constant": false,
-                      "id": 12049,
-                      "name": "operatorParams",
-                      "nodeType": "VariableDeclaration",
-                      "scope": 12078,
-                      "src": "24594:22:39",
-                      "stateVariable": false,
-                      "storageLocation": "default",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      },
-                      "typeName": {
-                        "id": 12048,
-                        "name": "uint256",
-                        "nodeType": "ElementaryTypeName",
-                        "src": "24594:7:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      },
-                      "value": null,
-                      "visibility": "internal"
-                    }
-                  ],
-                  "id": 12054,
-                  "initialValue": {
-                    "argumentTypes": null,
-                    "expression": {
-                      "argumentTypes": null,
-                      "baseExpression": {
-                        "argumentTypes": null,
-                        "id": 12050,
-                        "name": "operators",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 8825,
-                        "src": "24619:9:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_mapping$_t_address_$_t_struct$_Operator_$8834_storage_$",
-                          "typeString": "mapping(address => struct StakeDelegatable.Operator storage ref)"
-                        }
-                      },
-                      "id": 12052,
-                      "indexExpression": {
-                        "argumentTypes": null,
-                        "id": 12051,
-                        "name": "_operator",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 12041,
-                        "src": "24629:9:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      },
-                      "isConstant": false,
-                      "isLValue": true,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "nodeType": "IndexAccess",
-                      "src": "24619:20:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_struct$_Operator_$8834_storage",
-                        "typeString": "struct StakeDelegatable.Operator storage ref"
-                      }
-                    },
-                    "id": 12053,
-                    "isConstant": false,
-                    "isLValue": true,
-                    "isPure": false,
-                    "lValueRequested": false,
-                    "memberName": "packedParams",
-                    "nodeType": "MemberAccess",
-                    "referencedDeclaration": 8827,
-                    "src": "24619:33:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
-                    }
-                  },
-                  "nodeType": "VariableDeclarationStatement",
-                  "src": "24594:58:39"
-                },
-                {
-                  "condition": {
-                    "argumentTypes": null,
-                    "commonType": {
-                      "typeIdentifier": "t_bool",
-                      "typeString": "bool"
-                    },
-                    "id": 12069,
-                    "isConstant": false,
-                    "isLValue": false,
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-                    "lValueRequested": false,
-                    "leftExpression": {
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-                      "commonType": {
-                        "typeIdentifier": "t_bool",
-                        "typeString": "bool"
-                      },
-                      "id": 12062,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "leftExpression": {
-                        "argumentTypes": null,
-                        "arguments": [
-                          {
-                            "argumentTypes": null,
-                            "id": 12056,
-                            "name": "_operator",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 12041,
-                            "src": "24703:9:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
-                            }
-                          },
-                          {
-                            "argumentTypes": null,
-                            "id": 12057,
-                            "name": "_operatorContract",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 12043,
-                            "src": "24714:17:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
-                            }
-                          }
-                        ],
-                        "expression": {
-                          "argumentTypes": [
-                            {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
-                            },
-                            {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
-                            }
-                          ],
-                          "id": 12055,
-                          "name": "isAuthorizedForOperator",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 1713,
-                          "src": "24679:23:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_function_internal_view$_t_address_$_t_address_$returns$_t_bool_$",
-                            "typeString": "function (address,address) view returns (bool)"
-                          }
-                        },
-                        "id": 12058,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "kind": "functionCall",
-                        "lValueRequested": false,
-                        "names": [],
-                        "nodeType": "FunctionCall",
-                        "src": "24679:53:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_bool",
-                          "typeString": "bool"
-                        }
-                      },
-                      "nodeType": "BinaryOperation",
-                      "operator": "&&",
-                      "rightExpression": {
-                        "argumentTypes": null,
-                        "arguments": [
-                          {
-                            "argumentTypes": null,
-                            "id": 12060,
-                            "name": "operatorParams",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 12049,
-                            "src": "24763:14:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          }
-                        ],
-                        "expression": {
-                          "argumentTypes": [
-                            {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          ],
-                          "id": 12059,
-                          "name": "_isInitialized",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 12314,
-                          "src": "24748:14:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_bool_$",
-                            "typeString": "function (uint256) view returns (bool)"
-                          }
-                        },
-                        "id": 12061,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "kind": "functionCall",
-                        "lValueRequested": false,
-                        "names": [],
-                        "nodeType": "FunctionCall",
-                        "src": "24748:30:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_bool",
-                          "typeString": "bool"
-                        }
-                      },
-                      "src": "24679:99:39",
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-                        "typeIdentifier": "t_bool",
-                        "typeString": "bool"
-                      }
-                    },
-                    "nodeType": "BinaryOperation",
-                    "operator": "&&",
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-                      "argumentTypes": null,
-                      "id": 12068,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "nodeType": "UnaryOperation",
-                      "operator": "!",
-                      "prefix": true,
-                      "src": "24794:63:39",
-                      "subExpression": {
-                        "argumentTypes": null,
-                        "arguments": [
-                          {
-                            "argumentTypes": null,
-                            "id": 12064,
-                            "name": "_operator",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 12041,
-                            "src": "24812:9:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
-                            }
-                          },
-                          {
-                            "argumentTypes": null,
-                            "id": 12065,
-                            "name": "operatorParams",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 12049,
-                            "src": "24823:14:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          },
-                          {
-                            "argumentTypes": null,
-                            "id": 12066,
-                            "name": "_operatorContract",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 12043,
-                            "src": "24839:17:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
-                            }
-                          }
-                        ],
-                        "expression": {
-                          "argumentTypes": [
-                            {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
-                            },
-                            {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            },
-                            {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
-                            }
-                          ],
-                          "id": 12063,
-                          "name": "_isStakeReleased",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 12390,
-                          "src": "24795:16:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_function_internal_view$_t_address_$_t_uint256_$_t_address_$returns$_t_bool_$",
-                            "typeString": "function (address,uint256,address) view returns (bool)"
-                          }
-                        },
-                        "id": 12067,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "kind": "functionCall",
-                        "lValueRequested": false,
-                        "names": [],
-                        "nodeType": "FunctionCall",
-                        "src": "24795:62:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_bool",
-                          "typeString": "bool"
-                        }
-                      },
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_bool",
-                        "typeString": "bool"
-                      }
-                    },
-                    "src": "24679:178:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_bool",
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-                    }
-                  },
-                  "falseBody": null,
-                  "id": 12077,
-                  "nodeType": "IfStatement",
-                  "src": "24662:267:39",
-                  "trueBody": {
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-                    "src": "24868:61:39",
-                    "statements": [
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-                        "expression": {
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-                          "id": 12074,
-                          "isConstant": false,
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-                          "isPure": false,
-                          "lValueRequested": false,
-                          "leftHandSide": {
-                            "argumentTypes": null,
-                            "id": 12070,
-                            "name": "balance",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 12046,
-                            "src": "24882:7:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          },
-                          "nodeType": "Assignment",
-                          "operator": "=",
-                          "rightHandSide": {
-                            "argumentTypes": null,
-                            "arguments": [],
-                            "expression": {
-                              "argumentTypes": [],
-                              "expression": {
-                                "argumentTypes": null,
-                                "id": 12071,
-                                "name": "operatorParams",
-                                "nodeType": "Identifier",
-                                "overloadedDeclarations": [],
-                                "referencedDeclaration": 12049,
-                                "src": "24892:14:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_uint256",
-                                  "typeString": "uint256"
-                                }
-                              },
-                              "id": 12072,
-                              "isConstant": false,
-                              "isLValue": false,
-                              "isPure": false,
-                              "lValueRequested": false,
-                              "memberName": "getAmount",
-                              "nodeType": "MemberAccess",
-                              "referencedDeclaration": 27910,
-                              "src": "24892:24:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_function_internal_pure$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$",
-                                "typeString": "function (uint256) pure returns (uint256)"
-                              }
-                            },
-                            "id": 12073,
-                            "isConstant": false,
-                            "isLValue": false,
-                            "isPure": false,
-                            "kind": "functionCall",
-                            "lValueRequested": false,
-                            "names": [],
-                            "nodeType": "FunctionCall",
-                            "src": "24892:26:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          },
-                          "src": "24882:36:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_uint256",
-                            "typeString": "uint256"
-                          }
-                        },
-                        "id": 12075,
-                        "nodeType": "ExpressionStatement",
-                        "src": "24882:36:39"
-                      }
-                    ]
-                  }
-                }
-              ]
-            },
-            "documentation": "@notice Gets the active stake balance of the specified address.\n An active stake is a stake that passed the initialization period,\n and may be in the process of undelegation\n but has not been released yet,\n either because the undelegation period is not over,\n or because the operator contract has an active lock on the operator.\n Also, the operator had to approve the specified operator contract.\n\n    /// The difference between eligible stake is that active stake does not make\n the operator eligible for work selection but it may be still finishing\n earlier work until the stake is released.\n Operator with a minimum required\n amount of active stake can join the network but cannot be selected to any\n new work.\n\n    /// @param _operator address of stake operator.\n @param _operatorContract address of operator contract.\n @return an uint256 representing the eligible stake balance.",
-            "id": 12079,
-            "implemented": true,
-            "kind": "function",
-            "modifiers": [],
-            "name": "activeStake",
-            "nodeType": "FunctionDefinition",
-            "parameters": {
-              "id": 12044,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 12041,
-                  "name": "_operator",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12079,
-                  "src": "24472:17:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 12040,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "24472:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                },
-                {
-                  "constant": false,
-                  "id": 12043,
-                  "name": "_operatorContract",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12079,
-                  "src": "24491:25:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 12042,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "24491:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "24471:46:39"
-            },
-            "returnParameters": {
-              "id": 12047,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 12046,
-                  "name": "balance",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12079,
-                  "src": "24563:15:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_uint256",
-                    "typeString": "uint256"
-                  },
-                  "typeName": {
-                    "id": 12045,
-                    "name": "uint256",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "24563:7:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "24562:17:39"
-            },
-            "scope": 12435,
-            "src": "24451:484:39",
-            "stateMutability": "view",
-            "superFunction": null,
-            "visibility": "public"
-          },
-          {
-            "body": {
-              "id": 12096,
-              "nodeType": "Block",
-              "src": "25696:79:39",
-              "statements": [
-                {
-                  "expression": {
-                    "argumentTypes": null,
-                    "commonType": {
-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
-                    },
-                    "id": 12094,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "lValueRequested": false,
-                    "leftExpression": {
-                      "argumentTypes": null,
-                      "arguments": [
-                        {
-                          "argumentTypes": null,
-                          "id": 12089,
-                          "name": "staker",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 12081,
-                          "src": "25725:6:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_address",
-                            "typeString": "address"
-                          }
-                        },
-                        {
-                          "argumentTypes": null,
-                          "id": 12090,
-                          "name": "operatorContract",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 12083,
-                          "src": "25733:16:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_address",
-                            "typeString": "address"
-                          }
-                        }
-                      ],
-                      "expression": {
-                        "argumentTypes": [
-                          {
-                            "typeIdentifier": "t_address",
-                            "typeString": "address"
-                          },
-                          {
-                            "typeIdentifier": "t_address",
-                            "typeString": "address"
-                          }
-                        ],
-                        "id": 12088,
-                        "name": "activeStake",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 12079,
-                        "src": "25713:11:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_function_internal_view$_t_address_$_t_address_$returns$_t_uint256_$",
-                          "typeString": "function (address,address) view returns (uint256)"
-                        }
-                      },
-                      "id": 12091,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "kind": "functionCall",
-                      "lValueRequested": false,
-                      "names": [],
-                      "nodeType": "FunctionCall",
-                      "src": "25713:37:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      }
-                    },
-                    "nodeType": "BinaryOperation",
-                    "operator": ">=",
-                    "rightExpression": {
-                      "argumentTypes": null,
-                      "arguments": [],
-                      "expression": {
-                        "argumentTypes": [],
-                        "id": 12092,
-                        "name": "minimumStake",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11165,
-                        "src": "25754:12:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_function_internal_view$__$returns$_t_uint256_$",
-                          "typeString": "function () view returns (uint256)"
-                        }
-                      },
-                      "id": 12093,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "kind": "functionCall",
-                      "lValueRequested": false,
-                      "names": [],
-                      "nodeType": "FunctionCall",
-                      "src": "25754:14:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      }
-                    },
-                    "src": "25713:55:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_bool",
-                      "typeString": "bool"
-                    }
-                  },
-                  "functionReturnParameters": 12087,
-                  "id": 12095,
-                  "nodeType": "Return",
-                  "src": "25706:62:39"
-                }
-              ]
-            },
-            "documentation": "@notice Checks if the specified account has enough active stake to become\n network operator and that the specified operator contract has been\n authorized for potential slashing.\n\n    /// Having the required minimum of active stake makes the operator eligible\n to join the network. If the active stake is not currently undelegating,\n operator is also eligible for work selection.\n\n    /// @param staker Staker's address\n @param operatorContract Operator contract's address\n @return True if has enough active stake to participate in the network,\n false otherwise.",
-            "id": 12097,
-            "implemented": true,
-            "kind": "function",
-            "modifiers": [],
-            "name": "hasMinimumStake",
-            "nodeType": "FunctionDefinition",
-            "parameters": {
-              "id": 12084,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 12081,
-                  "name": "staker",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12097,
-                  "src": "25599:14:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 12080,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "25599:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                },
-                {
-                  "constant": false,
-                  "id": 12083,
-                  "name": "operatorContract",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12097,
-                  "src": "25615:24:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 12082,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "25615:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "25598:42:39"
-            },
-            "returnParameters": {
-              "id": 12087,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 12086,
-                  "name": "",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12097,
-                  "src": "25686:4:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_bool",
-                    "typeString": "bool"
-                  },
-                  "typeName": {
-                    "id": 12085,
-                    "name": "bool",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "25686:4:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_bool",
-                      "typeString": "bool"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "25685:6:39"
-            },
-            "scope": 12435,
-            "src": "25574:201:39",
-            "stateMutability": "view",
-            "superFunction": null,
-            "visibility": "public"
-          },
-          {
-            "body": {
-              "id": 12175,
-              "nodeType": "Block",
-              "src": "26320:699:39",
-              "statements": [
-                {
-                  "expression": {
-                    "argumentTypes": null,
-                    "arguments": [
-                      {
-                        "argumentTypes": null,
-                        "commonType": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        },
-                        "id": 12112,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "lValueRequested": false,
-                        "leftExpression": {
-                          "argumentTypes": null,
-                          "id": 12109,
-                          "name": "_value",
-                          "nodeType": "Identifier",
-                          "overloadedDeclarations": [],
-                          "referencedDeclaration": 12101,
-                          "src": "26338:6:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_uint256",
-                            "typeString": "uint256"
-                          }
-                        },
-                        "nodeType": "BinaryOperation",
-                        "operator": ">=",
-                        "rightExpression": {
-                          "argumentTypes": null,
-                          "arguments": [],
-                          "expression": {
-                            "argumentTypes": [],
-                            "id": 12110,
-                            "name": "minimumStake",
-                            "nodeType": "Identifier",
-                            "overloadedDeclarations": [],
-                            "referencedDeclaration": 11165,
-                            "src": "26348:12:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_function_internal_view$__$returns$_t_uint256_$",
-                              "typeString": "function () view returns (uint256)"
-                            }
-                          },
-                          "id": 12111,
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": false,
-                          "kind": "functionCall",
-                          "lValueRequested": false,
-                          "names": [],
-                          "nodeType": "FunctionCall",
-                          "src": "26348:14:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_uint256",
-                            "typeString": "uint256"
-                          }
-                        },
-                        "src": "26338:24:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_bool",
-                          "typeString": "bool"
-                        }
-                      },
-                      {
-                        "argumentTypes": null,
-                        "hexValue": "4c657373207468616e20746865206d696e696d756d207374616b65",
-                        "id": 12113,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": true,
-                        "kind": "string",
-                        "lValueRequested": false,
-                        "nodeType": "Literal",
-                        "src": "26364:29:39",
-                        "subdenomination": null,
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_stringliteral_c6d66e5d14df06ecd5772a76d2f19421e7b2d8605daf8bd076cb516603943b67",
-                          "typeString": "literal_string \"Less than the minimum stake\""
-                        },
-                        "value": "Less than the minimum stake"
-                      }
-                    ],
-                    "expression": {
-                      "argumentTypes": [
-                        {
-                          "typeIdentifier": "t_bool",
-                          "typeString": "bool"
-                        },
-                        {
-                          "typeIdentifier": "t_stringliteral_c6d66e5d14df06ecd5772a76d2f19421e7b2d8605daf8bd076cb516603943b67",
-                          "typeString": "literal_string \"Less than the minimum stake\""
-                        }
-                      ],
-                      "id": 12108,
-                      "name": "require",
-                      "nodeType": "Identifier",
-                      "overloadedDeclarations": [28149, 28150],
-                      "referencedDeclaration": 28150,
-                      "src": "26330:7:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
-                        "typeString": "function (bool,string memory) pure"
-                      }
-                    },
-                    "id": 12114,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "26330:64:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_tuple$__$",
-                      "typeString": "tuple()"
-                    }
-                  },
-                  "id": 12115,
-                  "nodeType": "ExpressionStatement",
-                  "src": "26330:64:39"
-                },
-                {
-                  "assignments": [12117],
-                  "declarations": [
-                    {
-                      "constant": false,
-                      "id": 12117,
-                      "name": "beneficiary",
-                      "nodeType": "VariableDeclaration",
-                      "scope": 12175,
-                      "src": "26405:27:39",
-                      "stateVariable": false,
-                      "storageLocation": "default",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_address_payable",
-                        "typeString": "address payable"
-                      },
-                      "typeName": {
-                        "id": 12116,
-                        "name": "address",
-                        "nodeType": "ElementaryTypeName",
-                        "src": "26405:15:39",
-                        "stateMutability": "payable",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address_payable",
-                          "typeString": "address payable"
-                        }
-                      },
-                      "value": null,
-                      "visibility": "internal"
-                    }
-                  ],
-                  "id": 12126,
-                  "initialValue": {
-                    "argumentTypes": null,
-                    "arguments": [
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-                        "argumentTypes": null,
-                        "arguments": [
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-                            "argumentTypes": null,
-                            "arguments": [
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-                                "argumentTypes": null,
-                                "hexValue": "30",
-                                "id": 12122,
-                                "isConstant": false,
-                                "isLValue": false,
-                                "isPure": true,
-                                "kind": "number",
-                                "lValueRequested": false,
-                                "nodeType": "Literal",
-                                "src": "26472:1:39",
-                                "subdenomination": null,
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_rational_0_by_1",
-                                  "typeString": "int_const 0"
-                                },
-                                "value": "0"
-                              }
-                            ],
-                            "expression": {
-                              "argumentTypes": [
-                                {
-                                  "typeIdentifier": "t_rational_0_by_1",
-                                  "typeString": "int_const 0"
-                                }
-                              ],
-                              "expression": {
-                                "argumentTypes": null,
-                                "id": 12120,
-                                "name": "_extraData",
-                                "nodeType": "Identifier",
-                                "overloadedDeclarations": [],
-                                "referencedDeclaration": 12105,
-                                "src": "26451:10:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_bytes_memory_ptr",
-                                  "typeString": "bytes memory"
-                                }
-                              },
-                              "id": 12121,
-                              "isConstant": false,
-                              "isLValue": false,
-                              "isPure": false,
-                              "lValueRequested": false,
-                              "memberName": "toAddress",
-                              "nodeType": "MemberAccess",
-                              "referencedDeclaration": 27348,
-                              "src": "26451:20:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$returns$_t_address_$bound_to$_t_bytes_memory_ptr_$",
-                                "typeString": "function (bytes memory,uint256) pure returns (address)"
-                              }
-                            },
-                            "id": 12123,
-                            "isConstant": false,
-                            "isLValue": false,
-                            "isPure": false,
-                            "kind": "functionCall",
-                            "lValueRequested": false,
-                            "names": [],
-                            "nodeType": "FunctionCall",
-                            "src": "26451:23:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
-                            }
-                          }
-                        ],
-                        "expression": {
-                          "argumentTypes": [
-                            {
-                              "typeIdentifier": "t_address",
-                              "typeString": "address"
-                            }
-                          ],
-                          "id": 12119,
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": true,
-                          "lValueRequested": false,
-                          "nodeType": "ElementaryTypeNameExpression",
-                          "src": "26443:7:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_uint160_$",
-                            "typeString": "type(uint160)"
-                          },
-                          "typeName": "uint160"
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-                        "kind": "typeConversion",
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-                        "names": [],
-                        "nodeType": "FunctionCall",
-                        "src": "26443:32:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint160",
-                          "typeString": "uint160"
-                        }
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-                          "typeString": "uint160"
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-                      "lValueRequested": false,
-                      "nodeType": "ElementaryTypeNameExpression",
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-                        "typeIdentifier": "t_type$_t_address_$",
-                        "typeString": "type(address)"
-                      },
-                      "typeName": "address"
-                    },
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-                    "isLValue": false,
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-                    "kind": "typeConversion",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "26435:41:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address_payable",
-                      "typeString": "address payable"
-                    }
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-                      "src": "26486:18:39",
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-                      "storageLocation": "default",
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-                        "typeIdentifier": "t_address",
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-                        "name": "address",
-                        "nodeType": "ElementaryTypeName",
-                        "src": "26486:7:39",
-                        "stateMutability": "nonpayable",
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-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
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-                              "typeString": "function (struct TopUps.Storage storage pointer,uint256,address,uint256,contract TokenStakingEscrow)"
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-                                "src": "30184:9:39",
-                                "typeDescriptions": {
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-                                  "typeString": "mapping(address => struct StakeDelegatable.Operator storage ref)"
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-                              },
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-                                "src": "30194:9:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_address",
-                                  "typeString": "address"
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-                              "isConstant": false,
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-                              "isPure": false,
-                              "lValueRequested": false,
-                              "nodeType": "IndexAccess",
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-                              "typeDescriptions": {
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-                            "src": "30184:33:39",
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-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
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-                                "src": "30260:6:39",
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-                                  "typeIdentifier": "t_uint256",
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-                                "name": "_operator",
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-                                "src": "30284:9:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_address",
-                                  "typeString": "address"
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-                              {
-                                "argumentTypes": null,
-                                "id": 12278,
-                                "name": "operatorParams",
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-                                "overloadedDeclarations": [],
-                                "referencedDeclaration": 12260,
-                                "src": "30311:14:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_uint256",
-                                  "typeString": "uint256"
-                                }
-                              },
-                              {
-                                "argumentTypes": null,
-                                "id": 12279,
-                                "name": "escrow",
-                                "nodeType": "Identifier",
-                                "overloadedDeclarations": [],
-                                "referencedDeclaration": 11097,
-                                "src": "30343:6:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_contract$_TokenStakingEscrow_$13399",
-                                  "typeString": "contract TokenStakingEscrow"
-                                }
-                              }
-                            ],
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-                              "argumentTypes": [
-                                {
-                                  "typeIdentifier": "t_uint256",
-                                  "typeString": "uint256"
-                                },
-                                {
-                                  "typeIdentifier": "t_address",
-                                  "typeString": "address"
-                                },
-                                {
-                                  "typeIdentifier": "t_uint256",
-                                  "typeString": "uint256"
-                                },
-                                {
-                                  "typeIdentifier": "t_contract$_TokenStakingEscrow_$13399",
-                                  "typeString": "contract TokenStakingEscrow"
-                                }
-                              ],
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-                                "argumentTypes": null,
-                                "id": 12274,
-                                "name": "topUps",
-                                "nodeType": "Identifier",
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-                                "referencedDeclaration": 11103,
-                                "src": "30220:6:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_struct$_Storage_$20159_storage",
-                                  "typeString": "struct TopUps.Storage storage ref"
-                                }
-                              },
-                              "id": 12275,
-                              "isConstant": false,
-                              "isLValue": true,
-                              "isPure": false,
-                              "lValueRequested": false,
-                              "memberName": "instantComplete",
-                              "nodeType": "MemberAccess",
-                              "referencedDeclaration": 20214,
-                              "src": "30220:22:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_function_delegatecall_nonpayable$_t_struct$_Storage_$20159_storage_ptr_$_t_uint256_$_t_address_$_t_uint256_$_t_contract$_TokenStakingEscrow_$13399_$returns$_t_uint256_$bound_to$_t_struct$_Storage_$20159_storage_ptr_$",
-                                "typeString": "function (struct TopUps.Storage storage pointer,uint256,address,uint256,contract TokenStakingEscrow) returns (uint256)"
-                              }
-                            },
-                            "id": 12280,
-                            "isConstant": false,
-                            "isLValue": false,
-                            "isPure": false,
-                            "kind": "functionCall",
-                            "lValueRequested": false,
-                            "names": [],
-                            "nodeType": "FunctionCall",
-                            "src": "30220:143:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          },
-                          "src": "30184:179:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_uint256",
-                            "typeString": "uint256"
-                          }
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-            "implemented": true,
-            "kind": "function",
-            "modifiers": [],
-            "name": "topUp",
-            "nodeType": "FunctionDefinition",
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-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 12178,
-                  "name": "_from",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12296,
-                  "src": "28307:13:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 12177,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "28307:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                },
-                {
-                  "constant": false,
-                  "id": 12180,
-                  "name": "_value",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12296,
-                  "src": "28330:14:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_uint256",
-                    "typeString": "uint256"
-                  },
-                  "typeName": {
-                    "id": 12179,
-                    "name": "uint256",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "28330:7:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
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-                  "value": null,
-                  "visibility": "internal"
-                },
-                {
-                  "constant": false,
-                  "id": 12182,
-                  "name": "_operator",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12296,
-                  "src": "28354:17:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 12181,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "28354:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                },
-                {
-                  "constant": false,
-                  "id": 12184,
-                  "name": "_extraData",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12296,
-                  "src": "28381:23:39",
-                  "stateVariable": false,
-                  "storageLocation": "memory",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_bytes_memory_ptr",
-                    "typeString": "bytes"
-                  },
-                  "typeName": {
-                    "id": 12183,
-                    "name": "bytes",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "28381:5:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_bytes_storage_ptr",
-                      "typeString": "bytes"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "28297:113:39"
-            },
-            "returnParameters": {
-              "id": 12186,
-              "nodeType": "ParameterList",
-              "parameters": [],
-              "src": "28420:0:39"
-            },
-            "scope": 12435,
-            "src": "28283:2408:39",
-            "stateMutability": "nonpayable",
-            "superFunction": null,
-            "visibility": "internal"
-          },
-          {
-            "body": {
-              "id": 12313,
-              "nodeType": "Block",
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-              "statements": [
-                {
-                  "expression": {
-                    "argumentTypes": null,
-                    "commonType": {
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-                      "typeString": "uint256"
-                    },
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-                    "isLValue": false,
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-                    "lValueRequested": false,
-                    "leftExpression": {
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-                      "expression": {
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-                        "id": 12303,
-                        "name": "block",
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-                          "typeIdentifier": "t_magic_block",
-                          "typeString": "block"
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-                          "argumentTypes": null,
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-                          "name": "initializationPeriod",
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-                          "src": "30971:20:39",
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-                            "typeString": "uint256"
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-                        }
-                      ],
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-                          {
-                            "typeIdentifier": "t_uint256",
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-                        ],
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-                            "isConstant": false,
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-                            "lValueRequested": false,
-                            "memberName": "getCreationTimestamp",
-                            "nodeType": "MemberAccess",
-                            "referencedDeclaration": 27945,
-                            "src": "30928:36:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_function_internal_pure$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$",
-                              "typeString": "function (uint256) pure returns (uint256)"
-                            }
-                          },
-                          "id": 12307,
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": false,
-                          "kind": "functionCall",
-                          "lValueRequested": false,
-                          "names": [],
-                          "nodeType": "FunctionCall",
-                          "src": "30928:38:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_uint256",
-                            "typeString": "uint256"
-                          }
-                        },
-                        "id": 12308,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "lValueRequested": false,
-                        "memberName": "add",
-                        "nodeType": "MemberAccess",
-                        "referencedDeclaration": 310,
-                        "src": "30928:42:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$",
-                          "typeString": "function (uint256,uint256) pure returns (uint256)"
-                        }
-                      },
-                      "id": 12310,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "kind": "functionCall",
-                      "lValueRequested": false,
-                      "names": [],
-                      "nodeType": "FunctionCall",
-                      "src": "30928:64:39",
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-                        "typeIdentifier": "t_uint256",
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-                }
-              ]
-            },
-            "documentation": "@notice Is the operator with the given params initialized",
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-            "implemented": true,
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-                    "src": "30787:7:39",
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-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
-                    }
-                  },
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-                  "visibility": "internal"
-                }
-              ],
-              "src": "30786:25:39"
-            },
-            "returnParameters": {
-              "id": 12302,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 12301,
-                  "name": "",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12314,
-                  "src": "30859:4:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_bool",
-                    "typeString": "bool"
-                  },
-                  "typeName": {
-                    "id": 12300,
-                    "name": "bool",
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-                    "src": "30859:4:39",
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-                      "typeString": "bool"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "30858:6:39"
-            },
-            "scope": 12435,
-            "src": "30763:236:39",
-            "stateMutability": "view",
-            "superFunction": null,
-            "visibility": "internal"
-          },
-          {
-            "body": {
-              "id": 12338,
-              "nodeType": "Block",
-              "src": "31179:157:39",
-              "statements": [
-                {
-                  "assignments": [12322],
-                  "declarations": [
-                    {
-                      "constant": false,
-                      "id": 12322,
-                      "name": "undelegatedAt",
-                      "nodeType": "VariableDeclaration",
-                      "scope": 12338,
-                      "src": "31189:21:39",
-                      "stateVariable": false,
-                      "storageLocation": "default",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_uint256",
-                        "typeString": "uint256"
-                      },
-                      "typeName": {
-                        "id": 12321,
-                        "name": "uint256",
-                        "nodeType": "ElementaryTypeName",
-                        "src": "31189:7:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      },
-                      "value": null,
-                      "visibility": "internal"
-                    }
-                  ],
-                  "id": 12326,
-                  "initialValue": {
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-                    "arguments": [],
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-                      "expression": {
-                        "argumentTypes": null,
-                        "id": 12323,
-                        "name": "_operatorParams",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 12316,
-                        "src": "31213:15:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_uint256",
-                          "typeString": "uint256"
-                        }
-                      },
-                      "id": 12324,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "memberName": "getUndelegationTimestamp",
-                      "nodeType": "MemberAccess",
-                      "referencedDeclaration": 27977,
-                      "src": "31213:40:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_pure$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$",
-                        "typeString": "function (uint256) pure returns (uint256)"
-                      }
-                    },
-                    "id": 12325,
-                    "isConstant": false,
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-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "31213:42:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
-                    }
-                  },
-                  "nodeType": "VariableDeclarationStatement",
-                  "src": "31189:66:39"
-                },
-                {
-                  "expression": {
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-                            "typeString": "uint256"
-                          },
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-                        "typeDescriptions": {
-                          "typeIdentifier": "t_function_delegatecall_view$_t_struct$_Storage_$19752_storage_ptr_$_t_address_$_t_address_$returns$_t_bool_$bound_to$_t_struct$_Storage_$19752_storage_ptr_$",
-                          "typeString": "function (struct Locks.Storage storage pointer,address,address) view returns (bool)"
-                        }
-                      },
-                      "id": 12386,
-                      "isConstant": false,
-                      "isLValue": false,
-                      "isPure": false,
-                      "kind": "functionCall",
-                      "lValueRequested": false,
-                      "names": [],
-                      "nodeType": "FunctionCall",
-                      "src": "32312:51:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_bool",
-                        "typeString": "bool"
-                      }
-                    },
-                    "src": "32256:107:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_bool",
-                      "typeString": "bool"
-                    }
-                  },
-                  "functionReturnParameters": 12378,
-                  "id": 12388,
-                  "nodeType": "Return",
-                  "src": "32237:126:39"
-                }
-              ]
-            },
-            "documentation": "@notice Get whether the operator's stake is released\n as far as the operator contract is concerned.\n If the operator contract has a lock on the operator,\n the operator's stake is be released when the lock expires.\n Otherwise the stake is released when the operator finishes undelegating.",
-            "id": 12390,
-            "implemented": true,
-            "kind": "function",
-            "modifiers": [],
-            "name": "_isStakeReleased",
-            "nodeType": "FunctionDefinition",
-            "parameters": {
-              "id": 12375,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 12370,
-                  "name": "_operator",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12390,
-                  "src": "32106:17:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 12369,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "32106:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                },
-                {
-                  "constant": false,
-                  "id": 12372,
-                  "name": "_operatorParams",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12390,
-                  "src": "32133:23:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_uint256",
-                    "typeString": "uint256"
-                  },
-                  "typeName": {
-                    "id": 12371,
-                    "name": "uint256",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "32133:7:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                },
-                {
-                  "constant": false,
-                  "id": 12374,
-                  "name": "_operatorContract",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12390,
-                  "src": "32166:25:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 12373,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "32166:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "32096:101:39"
-            },
-            "returnParameters": {
-              "id": 12378,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 12377,
-                  "name": "",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12390,
-                  "src": "32221:4:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_bool",
-                    "typeString": "bool"
-                  },
-                  "typeName": {
-                    "id": 12376,
-                    "name": "bool",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "32221:4:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_bool",
-                      "typeString": "bool"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                }
-              ],
-              "src": "32220:6:39"
-            },
-            "scope": 12435,
-            "src": "32071:299:39",
-            "stateMutability": "view",
-            "superFunction": null,
-            "visibility": "internal"
-          },
-          {
-            "body": {
-              "id": 12433,
-              "nodeType": "Block",
-              "src": "32494:564:39",
-              "statements": [
-                {
-                  "condition": {
-                    "argumentTypes": null,
-                    "arguments": [
-                      {
-                        "argumentTypes": null,
-                        "id": 12401,
-                        "name": "_operator",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 12394,
-                        "src": "32539:9:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      }
-                    ],
-                    "expression": {
-                      "argumentTypes": [
-                        {
-                          "typeIdentifier": "t_address",
-                          "typeString": "address"
-                        }
-                      ],
-                      "expression": {
-                        "argumentTypes": null,
-                        "id": 12399,
-                        "name": "grantStaking",
-                        "nodeType": "Identifier",
-                        "overloadedDeclarations": [],
-                        "referencedDeclaration": 11099,
-                        "src": "32508:12:39",
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_Storage_$19231_storage",
-                          "typeString": "struct GrantStaking.Storage storage ref"
-                        }
-                      },
-                      "id": 12400,
-                      "isConstant": false,
-                      "isLValue": true,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "memberName": "hasGrantDelegated",
-                      "nodeType": "MemberAccess",
-                      "referencedDeclaration": 19375,
-                      "src": "32508:30:39",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_delegatecall_view$_t_struct$_Storage_$19231_storage_ptr_$_t_address_$returns$_t_bool_$bound_to$_t_struct$_Storage_$19231_storage_ptr_$",
-                        "typeString": "function (struct GrantStaking.Storage storage pointer,address) view returns (bool)"
-                      }
-                    },
-                    "id": 12402,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "32508:41:39",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_bool",
-                      "typeString": "bool"
-                    }
-                  },
-                  "falseBody": {
-                    "id": 12431,
-                    "nodeType": "Block",
-                    "src": "32914:138:39",
-                    "statements": [
-                      {
-                        "expression": {
-                          "argumentTypes": null,
-                          "arguments": [
-                            {
-                              "argumentTypes": null,
-                              "id": 12427,
-                              "name": "_owner",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 12392,
-                              "src": "33025:6:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              }
-                            },
-                            {
-                              "argumentTypes": null,
-                              "id": 12428,
-                              "name": "_amount",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 12396,
-                              "src": "33033:7:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_uint256",
-                                "typeString": "uint256"
-                              }
-                            }
-                          ],
-                          "expression": {
-                            "argumentTypes": [
-                              {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              },
-                              {
-                                "typeIdentifier": "t_uint256",
-                                "typeString": "uint256"
-                              }
-                            ],
-                            "expression": {
-                              "argumentTypes": null,
-                              "id": 12424,
-                              "name": "token",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 11093,
-                              "src": "33006:5:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_contract$_ERC20Burnable_$1023",
-                                "typeString": "contract ERC20Burnable"
-                              }
-                            },
-                            "id": 12426,
-                            "isConstant": false,
-                            "isLValue": false,
-                            "isPure": false,
-                            "lValueRequested": false,
-                            "memberName": "safeTransfer",
-                            "nodeType": "MemberAccess",
-                            "referencedDeclaration": 1183,
-                            "src": "33006:18:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_function_internal_nonpayable$_t_contract$_IERC20_$1150_$_t_address_$_t_uint256_$returns$__$bound_to$_t_contract$_IERC20_$1150_$",
-                              "typeString": "function (contract IERC20,address,uint256)"
-                            }
-                          },
-                          "id": 12429,
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": false,
-                          "kind": "functionCall",
-                          "lValueRequested": false,
-                          "names": [],
-                          "nodeType": "FunctionCall",
-                          "src": "33006:35:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_tuple$__$",
-                            "typeString": "tuple()"
-                          }
-                        },
-                        "id": 12430,
-                        "nodeType": "ExpressionStatement",
-                        "src": "33006:35:39"
-                      }
-                    ]
-                  },
-                  "id": 12432,
-                  "nodeType": "IfStatement",
-                  "src": "32504:548:39",
-                  "trueBody": {
-                    "id": 12423,
-                    "nodeType": "Block",
-                    "src": "32551:357:39",
-                    "statements": [
-                      {
-                        "expression": {
-                          "argumentTypes": null,
-                          "arguments": [
-                            {
-                              "argumentTypes": null,
-                              "arguments": [
-                                {
-                                  "argumentTypes": null,
-                                  "id": 12410,
-                                  "name": "escrow",
-                                  "nodeType": "Identifier",
-                                  "overloadedDeclarations": [],
-                                  "referencedDeclaration": 11097,
-                                  "src": "32709:6:39",
-                                  "typeDescriptions": {
-                                    "typeIdentifier": "t_contract$_TokenStakingEscrow_$13399",
-                                    "typeString": "contract TokenStakingEscrow"
-                                  }
-                                }
-                              ],
-                              "expression": {
-                                "argumentTypes": [
-                                  {
-                                    "typeIdentifier": "t_contract$_TokenStakingEscrow_$13399",
-                                    "typeString": "contract TokenStakingEscrow"
-                                  }
-                                ],
-                                "id": 12409,
-                                "isConstant": false,
-                                "isLValue": false,
-                                "isPure": true,
-                                "lValueRequested": false,
-                                "nodeType": "ElementaryTypeNameExpression",
-                                "src": "32701:7:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_type$_t_address_$",
-                                  "typeString": "type(address)"
-                                },
-                                "typeName": "address"
-                              },
-                              "id": 12411,
-                              "isConstant": false,
-                              "isLValue": false,
-                              "isPure": false,
-                              "kind": "typeConversion",
-                              "lValueRequested": false,
-                              "names": [],
-                              "nodeType": "FunctionCall",
-                              "src": "32701:15:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              }
-                            },
-                            {
-                              "argumentTypes": null,
-                              "id": 12412,
-                              "name": "_amount",
-                              "nodeType": "Identifier",
-                              "overloadedDeclarations": [],
-                              "referencedDeclaration": 12396,
-                              "src": "32734:7:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_uint256",
-                                "typeString": "uint256"
-                              }
-                            },
-                            {
-                              "argumentTypes": null,
-                              "arguments": [
-                                {
-                                  "argumentTypes": null,
-                                  "id": 12415,
-                                  "name": "_operator",
-                                  "nodeType": "Identifier",
-                                  "overloadedDeclarations": [],
-                                  "referencedDeclaration": 12394,
-                                  "src": "32791:9:39",
-                                  "typeDescriptions": {
-                                    "typeIdentifier": "t_address",
-                                    "typeString": "address"
-                                  }
-                                },
-                                {
-                                  "argumentTypes": null,
-                                  "arguments": [
-                                    {
-                                      "argumentTypes": null,
-                                      "id": 12418,
-                                      "name": "_operator",
-                                      "nodeType": "Identifier",
-                                      "overloadedDeclarations": [],
-                                      "referencedDeclaration": 12394,
-                                      "src": "32855:9:39",
-                                      "typeDescriptions": {
-                                        "typeIdentifier": "t_address",
-                                        "typeString": "address"
-                                      }
-                                    }
-                                  ],
-                                  "expression": {
-                                    "argumentTypes": [
-                                      {
-                                        "typeIdentifier": "t_address",
-                                        "typeString": "address"
-                                      }
-                                    ],
-                                    "expression": {
-                                      "argumentTypes": null,
-                                      "id": 12416,
-                                      "name": "grantStaking",
-                                      "nodeType": "Identifier",
-                                      "overloadedDeclarations": [],
-                                      "referencedDeclaration": 11099,
-                                      "src": "32822:12:39",
-                                      "typeDescriptions": {
-                                        "typeIdentifier": "t_struct$_Storage_$19231_storage",
-                                        "typeString": "struct GrantStaking.Storage storage ref"
-                                      }
-                                    },
-                                    "id": 12417,
-                                    "isConstant": false,
-                                    "isLValue": true,
-                                    "isPure": false,
-                                    "lValueRequested": false,
-                                    "memberName": "getGrantForOperator",
-                                    "nodeType": "MemberAccess",
-                                    "referencedDeclaration": 19423,
-                                    "src": "32822:32:39",
-                                    "typeDescriptions": {
-                                      "typeIdentifier": "t_function_delegatecall_view$_t_struct$_Storage_$19231_storage_ptr_$_t_address_$returns$_t_uint256_$bound_to$_t_struct$_Storage_$19231_storage_ptr_$",
-                                      "typeString": "function (struct GrantStaking.Storage storage pointer,address) view returns (uint256)"
-                                    }
-                                  },
-                                  "id": 12419,
-                                  "isConstant": false,
-                                  "isLValue": false,
-                                  "isPure": false,
-                                  "kind": "functionCall",
-                                  "lValueRequested": false,
-                                  "names": [],
-                                  "nodeType": "FunctionCall",
-                                  "src": "32822:43:39",
-                                  "typeDescriptions": {
-                                    "typeIdentifier": "t_uint256",
-                                    "typeString": "uint256"
-                                  }
-                                }
-                              ],
-                              "expression": {
-                                "argumentTypes": [
-                                  {
-                                    "typeIdentifier": "t_address",
-                                    "typeString": "address"
-                                  },
-                                  {
-                                    "typeIdentifier": "t_uint256",
-                                    "typeString": "uint256"
-                                  }
-                                ],
-                                "expression": {
-                                  "argumentTypes": null,
-                                  "id": 12413,
-                                  "name": "abi",
-                                  "nodeType": "Identifier",
-                                  "overloadedDeclarations": [],
-                                  "referencedDeclaration": 28133,
-                                  "src": "32759:3:39",
-                                  "typeDescriptions": {
-                                    "typeIdentifier": "t_magic_abi",
-                                    "typeString": "abi"
-                                  }
-                                },
-                                "id": 12414,
-                                "isConstant": false,
-                                "isLValue": false,
-                                "isPure": true,
-                                "lValueRequested": false,
-                                "memberName": "encode",
-                                "nodeType": "MemberAccess",
-                                "referencedDeclaration": null,
-                                "src": "32759:10:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_function_abiencode_pure$__$returns$_t_bytes_memory_ptr_$",
-                                  "typeString": "function () pure returns (bytes memory)"
-                                }
-                              },
-                              "id": 12420,
-                              "isConstant": false,
-                              "isLValue": false,
-                              "isPure": false,
-                              "kind": "functionCall",
-                              "lValueRequested": false,
-                              "names": [],
-                              "nodeType": "FunctionCall",
-                              "src": "32759:124:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_bytes_memory_ptr",
-                                "typeString": "bytes memory"
-                              }
-                            }
-                          ],
-                          "expression": {
-                            "argumentTypes": [
-                              {
-                                "typeIdentifier": "t_address",
-                                "typeString": "address"
-                              },
-                              {
-                                "typeIdentifier": "t_uint256",
-                                "typeString": "uint256"
-                              },
-                              {
-                                "typeIdentifier": "t_bytes_memory_ptr",
-                                "typeString": "bytes memory"
-                              }
-                            ],
-                            "expression": {
-                              "argumentTypes": null,
-                              "arguments": [
-                                {
-                                  "argumentTypes": null,
-                                  "arguments": [
-                                    {
-                                      "argumentTypes": null,
-                                      "id": 12405,
-                                      "name": "token",
-                                      "nodeType": "Identifier",
-                                      "overloadedDeclarations": [],
-                                      "referencedDeclaration": 11093,
-                                      "src": "32661:5:39",
-                                      "typeDescriptions": {
-                                        "typeIdentifier": "t_contract$_ERC20Burnable_$1023",
-                                        "typeString": "contract ERC20Burnable"
-                                      }
-                                    }
-                                  ],
-                                  "expression": {
-                                    "argumentTypes": [
-                                      {
-                                        "typeIdentifier": "t_contract$_ERC20Burnable_$1023",
-                                        "typeString": "contract ERC20Burnable"
-                                      }
-                                    ],
-                                    "id": 12404,
-                                    "isConstant": false,
-                                    "isLValue": false,
-                                    "isPure": true,
-                                    "lValueRequested": false,
-                                    "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "32653:7:39",
-                                    "typeDescriptions": {
-                                      "typeIdentifier": "t_type$_t_address_$",
-                                      "typeString": "type(address)"
-                                    },
-                                    "typeName": "address"
-                                  },
-                                  "id": 12406,
-                                  "isConstant": false,
-                                  "isLValue": false,
-                                  "isPure": false,
-                                  "kind": "typeConversion",
-                                  "lValueRequested": false,
-                                  "names": [],
-                                  "nodeType": "FunctionCall",
-                                  "src": "32653:14:39",
-                                  "typeDescriptions": {
-                                    "typeIdentifier": "t_address",
-                                    "typeString": "address"
-                                  }
-                                }
-                              ],
-                              "expression": {
-                                "argumentTypes": [
-                                  {
-                                    "typeIdentifier": "t_address",
-                                    "typeString": "address"
-                                  }
-                                ],
-                                "id": 12403,
-                                "name": "TokenSender",
-                                "nodeType": "Identifier",
-                                "overloadedDeclarations": [],
-                                "referencedDeclaration": 10971,
-                                "src": "32641:11:39",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_type$_t_contract$_TokenSender_$10971_$",
-                                  "typeString": "type(contract TokenSender)"
-                                }
-                              },
-                              "id": 12407,
-                              "isConstant": false,
-                              "isLValue": false,
-                              "isPure": false,
-                              "kind": "typeConversion",
-                              "lValueRequested": false,
-                              "names": [],
-                              "nodeType": "FunctionCall",
-                              "src": "32641:27:39",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_contract$_TokenSender_$10971",
-                                "typeString": "contract TokenSender"
-                              }
-                            },
-                            "id": 12408,
-                            "isConstant": false,
-                            "isLValue": false,
-                            "isPure": false,
-                            "lValueRequested": false,
-                            "memberName": "approveAndCall",
-                            "nodeType": "MemberAccess",
-                            "referencedDeclaration": 10970,
-                            "src": "32641:42:39",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
-                              "typeString": "function (address,uint256,bytes memory) external"
-                            }
-                          },
-                          "id": 12421,
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": false,
-                          "kind": "functionCall",
-                          "lValueRequested": false,
-                          "names": [],
-                          "nodeType": "FunctionCall",
-                          "src": "32641:256:39",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_tuple$__$",
-                            "typeString": "tuple()"
-                          }
-                        },
-                        "id": 12422,
-                        "nodeType": "ExpressionStatement",
-                        "src": "32641:256:39"
-                      }
-                    ]
-                  }
-                }
-              ]
-            },
-            "documentation": null,
-            "id": 12434,
-            "implemented": true,
-            "kind": "function",
-            "modifiers": [],
-            "name": "transferOrDeposit",
-            "nodeType": "FunctionDefinition",
-            "parameters": {
-              "id": 12397,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 12392,
-                  "name": "_owner",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12434,
-                  "src": "32412:14:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
-                    "typeString": "address"
-                  },
-                  "typeName": {
-                    "id": 12391,
-                    "name": "address",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "32412:7:39",
-                    "stateMutability": "nonpayable",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_address",
-                      "typeString": "address"
-                    }
-                  },
-                  "value": null,
-                  "visibility": "internal"
-                },
-                {
-                  "constant": false,
-                  "id": 12394,
-                  "name": "_operator",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 12434,
-                  "src": "32436:17:39",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_address",
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-              "documentation": "@notice Returns the current value of the undelegation period.\n The staking contract guarantees that an undelegated operator’s stakes\n will stay locked for a period of time after undelegation, and thus\n available as collateral for any work the operator is engaged in.\n The undelegation period is two weeks for the first two months and\n two months after that.",
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-                              "commonType": {
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-                          "name": "uint256",
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-                          "isPure": false,
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-                        },
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-                              "isPure": false,
-                              "lValueRequested": false,
-                              "member_name": "unpack",
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-                            },
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-                                  "isConstant": false,
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-                                  "member_name": "packedParams",
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-                                      "lValueRequested": false,
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-                                          "referencedDeclaration": 8825,
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-                                          "value": "operators"
-                                        },
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-                                        "name": "Identifier",
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-                      "visibility": "internal"
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-                          "name": "address",
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-                      "name": "duration",
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-                      "storageLocation": "default",
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-                      "value": null,
-                      "visibility": "internal"
-                    },
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-                          "name": "uint256",
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-                    "name": "Identifier",
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-                  {
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-                      "lValueRequested": false,
-                      "member_name": "sender",
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-                      "type": "address payable"
-                    },
-                    "children": [
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-                          "type": "msg",
-                          "value": "msg"
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-                        "name": "Identifier",
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-              "documentation": "@notice Get the locks placed on the operator.\n @return creators The addresses of operator contracts\n that have placed a lock on the operator.\n @return expirations The expiration times\n of the locks placed on the operator.",
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-                                  "type": "struct Locks.Storage storage ref",
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-                          {
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-                              "overloadedDeclarations": [null],
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-                              "type": "address",
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-              "documentation": "@notice Slash provided token amount from every member in the misbehaved\n operators array and burn 100% of all the tokens.\n @param amountToSlash Token amount to slash from every misbehaved operator.\n @param misbehavedOperators Array of addresses to seize the tokens from.",
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-                                                        null
-                                                      ],
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-                                                      "type": "mapping(address => struct StakeDelegatable.Operator storage ref)",
-                                                      "value": "operators"
-                                                    },
-                                                    "id": 11775,
-                                                    "name": "Identifier",
-                                                    "src": "18902:9:39"
-                                                  },
-                                                  {
-                                                    "attributes": {
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-                                                        null
-                                                      ],
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-                                                      "type": "address",
-                                                      "value": "operator"
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-                                                    "id": 11776,
-                                                    "name": "Identifier",
-                                                    "src": "18912:8:39"
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-                                                "id": 11777,
-                                                "name": "IndexAccess",
-                                                "src": "18902:19:39"
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-                                            "id": 11778,
-                                            "name": "MemberAccess",
-                                            "src": "18902:32:39"
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-                                              "lValueRequested": false,
-                                              "names": [null],
-                                              "type": "uint256",
-                                              "type_conversion": false
-                                            },
-                                            "children": [
-                                              {
-                                                "attributes": {
-                                                  "argumentTypes": [
-                                                    {
-                                                      "typeIdentifier": "t_uint256",
-                                                      "typeString": "uint256"
-                                                    }
-                                                  ],
-                                                  "isConstant": false,
-                                                  "isLValue": false,
-                                                  "isPure": false,
-                                                  "lValueRequested": false,
-                                                  "member_name": "setAmount",
-                                                  "referencedDeclaration": 27930,
-                                                  "type": "function (uint256,uint256) pure returns (uint256)"
-                                                },
-                                                "children": [
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-                                                      ],
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-                                                      "type": "uint256",
-                                                      "value": "operatorParams"
-                                                    },
-                                                    "id": 11779,
-                                                    "name": "Identifier",
-                                                    "src": "18937:14:39"
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-                                                ],
-                                                "id": 11780,
-                                                "name": "MemberAccess",
-                                                "src": "18937:24:39"
-                                              },
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-                                                "attributes": {
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-                                                  "lValueRequested": false,
-                                                  "names": [null],
-                                                  "type": "uint256",
-                                                  "type_conversion": false
-                                                },
-                                                "children": [
-                                                  {
-                                                    "attributes": {
-                                                      "argumentTypes": [
-                                                        {
-                                                          "typeIdentifier": "t_uint256",
-                                                          "typeString": "uint256"
-                                                        }
-                                                      ],
-                                                      "isConstant": false,
-                                                      "isLValue": false,
-                                                      "isPure": false,
-                                                      "lValueRequested": false,
-                                                      "member_name": "sub",
-                                                      "referencedDeclaration": 326,
-                                                      "type": "function (uint256,uint256) pure returns (uint256)"
-                                                    },
-                                                    "children": [
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-                                                        "attributes": {
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-                                                            null
-                                                          ],
-                                                          "referencedDeclaration": 11737,
-                                                          "type": "uint256",
-                                                          "value": "currentAmount"
-                                                        },
-                                                        "id": 11781,
-                                                        "name": "Identifier",
-                                                        "src": "18983:13:39"
-                                                      }
-                                                    ],
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-                                                    "name": "MemberAccess",
-                                                    "src": "18983:17:39"
-                                                  },
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-                                                    "attributes": {
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-                                                        null
-                                                      ],
-                                                      "referencedDeclaration": 11665,
-                                                      "type": "uint256",
-                                                      "value": "amountToSlash"
-                                                    },
-                                                    "id": 11783,
-                                                    "name": "Identifier",
-                                                    "src": "19001:13:39"
-                                                  }
-                                                ],
-                                                "id": 11784,
-                                                "name": "FunctionCall",
-                                                "src": "18983:32:39"
-                                              }
-                                            ],
-                                            "id": 11785,
-                                            "name": "FunctionCall",
-                                            "src": "18937:96:39"
-                                          }
-                                        ],
-                                        "id": 11786,
-                                        "name": "Assignment",
-                                        "src": "18902:131:39"
-                                      }
-                                    ],
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-                                    "name": "ExpressionStatement",
-                                    "src": "18902:131:39"
-                                  },
-                                  {
-                                    "children": [
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-                                          "isPure": false,
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-                                          "lValueRequested": false,
-                                          "names": [null],
-                                          "type": "tuple()",
-                                          "type_conversion": false
-                                        },
-                                        "children": [
-                                          {
-                                            "attributes": {
-                                              "argumentTypes": [
-                                                {
-                                                  "typeIdentifier": "t_address",
-                                                  "typeString": "address"
-                                                },
-                                                {
-                                                  "typeIdentifier": "t_uint256",
-                                                  "typeString": "uint256"
-                                                }
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-                                              "overloadedDeclarations": [null],
-                                              "referencedDeclaration": 11061,
-                                              "type": "function (address,uint256)",
-                                              "value": "TokensSlashed"
-                                            },
-                                            "id": 11788,
-                                            "name": "Identifier",
-                                            "src": "19056:13:39"
-                                          },
-                                          {
-                                            "attributes": {
-                                              "argumentTypes": null,
-                                              "overloadedDeclarations": [null],
-                                              "referencedDeclaration": 11697,
-                                              "type": "address",
-                                              "value": "operator"
-                                            },
-                                            "id": 11789,
-                                            "name": "Identifier",
-                                            "src": "19070:8:39"
-                                          },
-                                          {
-                                            "attributes": {
-                                              "argumentTypes": null,
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-                                              "referencedDeclaration": 11665,
-                                              "type": "uint256",
-                                              "value": "amountToSlash"
-                                            },
-                                            "id": 11790,
-                                            "name": "Identifier",
-                                            "src": "19080:13:39"
-                                          }
-                                        ],
-                                        "id": 11791,
-                                        "name": "FunctionCall",
-                                        "src": "19056:38:39"
-                                      }
-                                    ],
-                                    "id": 11792,
-                                    "name": "EmitStatement",
-                                    "src": "19051:43:39"
-                                  }
-                                ],
-                                "id": 11793,
-                                "name": "Block",
-                                "src": "18810:299:39"
-                              }
-                            ],
-                            "id": 11794,
-                            "name": "IfStatement",
-                            "src": "18539:570:39"
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-                        "id": 11795,
-                        "name": "Block",
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-                    "id": 11796,
-                    "name": "ForStatement",
-                    "src": "17930:1189:39"
-                  },
-                  {
-                    "children": [
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-                          "argumentTypes": null,
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-                          "isPure": false,
-                          "isStructConstructorCall": false,
-                          "lValueRequested": false,
-                          "names": [null],
-                          "type": "tuple()",
-                          "type_conversion": false
-                        },
-                        "children": [
-                          {
-                            "attributes": {
-                              "argumentTypes": [
-                                {
-                                  "typeIdentifier": "t_uint256",
-                                  "typeString": "uint256"
-                                }
-                              ],
-                              "isConstant": false,
-                              "isLValue": false,
-                              "isPure": false,
-                              "lValueRequested": false,
-                              "member_name": "burn",
-                              "referencedDeclaration": 1009,
-                              "type": "function (uint256) external"
-                            },
-                            "children": [
-                              {
-                                "attributes": {
-                                  "argumentTypes": null,
-                                  "overloadedDeclarations": [null],
-                                  "referencedDeclaration": 11093,
-                                  "type": "contract ERC20Burnable",
-                                  "value": "token"
-                                },
-                                "id": 11797,
-                                "name": "Identifier",
-                                "src": "19129:5:39"
-                              }
-                            ],
-                            "id": 11799,
-                            "name": "MemberAccess",
-                            "src": "19129:10:39"
-                          },
-                          {
-                            "attributes": {
-                              "argumentTypes": null,
-                              "overloadedDeclarations": [null],
-                              "referencedDeclaration": 11676,
-                              "type": "uint256",
-                              "value": "totalAmountToBurn"
-                            },
-                            "id": 11800,
-                            "name": "Identifier",
-                            "src": "19140:17:39"
-                          }
-                        ],
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-                        "src": "19129:29:39"
-                      }
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-                    "name": "ExpressionStatement",
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-                "name": "Block",
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-            "id": 11804,
-            "name": "FunctionDefinition",
-            "src": "17675:1490:39"
-          },
-          {
-            "attributes": {
-              "documentation": "@notice Seize provided token amount from every member in the misbehaved\n operators array. The tattletale is rewarded with 5% of the total seized\n amount scaled by the reward adjustment parameter and the rest 95% is burned.\n @param amountToSeize Token amount to seize from every misbehaved operator.\n @param rewardMultiplier Reward adjustment in percentage. Min 1% and 100% max.\n @param tattletale Address to receive the 5% reward.\n @param misbehavedOperators Array of addresses to seize the tokens from.",
-              "implemented": true,
-              "isConstructor": false,
-              "kind": "function",
-              "name": "seize",
-              "scope": 12435,
-              "stateMutability": "nonpayable",
-              "superFunction": null,
-              "visibility": "public"
-            },
-            "children": [
-              {
-                "children": [
-                  {
-                    "attributes": {
-                      "constant": false,
-                      "name": "amountToSeize",
-                      "scope": 11970,
-                      "stateVariable": false,
-                      "storageLocation": "default",
-                      "type": "uint256",
-                      "value": null,
-                      "visibility": "internal"
-                    },
-                    "children": [
-                      {
-                        "attributes": {
-                          "name": "uint256",
-                          "type": "uint256"
-                        },
-                        "id": 11805,
-                        "name": "ElementaryTypeName",
-                        "src": "19749:7:39"
-                      }
-                    ],
-                    "id": 11806,
-                    "name": "VariableDeclaration",
-                    "src": "19749:21:39"
-                  },
-                  {
-                    "attributes": {
-                      "constant": false,
-                      "name": "rewardMultiplier",
-                      "scope": 11970,
-                      "stateVariable": false,
-                      "storageLocation": "default",
-                      "type": "uint256",
-                      "value": null,
-                      "visibility": "internal"
-                    },
-                    "children": [
-                      {
-                        "attributes": {
-                          "name": "uint256",
-                          "type": "uint256"
-                        },
-                        "id": 11807,
-                        "name": "ElementaryTypeName",
-                        "src": "19780:7:39"
-                      }
-                    ],
-                    "id": 11808,
-                    "name": "VariableDeclaration",
-                    "src": "19780:24:39"
-                  },
-                  {
-                    "attributes": {
-                      "constant": false,
-                      "name": "tattletale",
-                      "scope": 11970,
-                      "stateVariable": false,
-                      "storageLocation": "default",
-                      "type": "address",
-                      "value": null,
-                      "visibility": "internal"
-                    },
-                    "children": [
-                      {
-                        "attributes": {
-                          "name": "address",
-                          "stateMutability": "nonpayable",
-                          "type": "address"
-                        },
-                        "id": 11809,
-                        "name": "ElementaryTypeName",
-                        "src": "19814:7:39"
-                      }
-                    ],
-                    "id": 11810,
-                    "name": "VariableDeclaration",
-                    "src": "19814:18:39"
-                  },
-                  {
-                    "attributes": {
-                      "constant": false,
-                      "name": "misbehavedOperators",
-                      "scope": 11970,
-                      "stateVariable": false,
-                      "storageLocation": "memory",
-                      "type": "address[]",
-                      "value": null,
-                      "visibility": "internal"
-                    },
-                    "children": [
-                      {
-                        "attributes": {
-                          "length": null,
-                          "type": "address[]"
-                        },
-                        "children": [
-                          {
-                            "attributes": {
-                              "name": "address",
-                              "stateMutability": "nonpayable",
-                              "type": "address"
-                            },
-                            "id": 11811,
-                            "name": "ElementaryTypeName",
-                            "src": "19842:7:39"
-                          }
-                        ],
-                        "id": 11812,
-                        "name": "ArrayTypeName",
-                        "src": "19842:9:39"
-                      }
-                    ],
-                    "id": 11813,
-                    "name": "VariableDeclaration",
-                    "src": "19842:36:39"
-                  }
-                ],
-                "id": 11814,
-                "name": "ParameterList",
-                "src": "19739:145:39"
-              },
-              {
-                "attributes": {
-                  "parameters": [null]
-                },
-                "children": [],
-                "id": 11819,
-                "name": "ParameterList",
-                "src": "19933:0:39"
-              },
-              {
-                "children": [
-                  {
-                    "attributes": {
-                      "argumentTypes": null,
-                      "overloadedDeclarations": [null],
-                      "referencedDeclaration": 1640,
-                      "type": "modifier (address)",
-                      "value": "onlyApprovedOperatorContract"
-                    },
-                    "id": 11815,
-                    "name": "Identifier",
-                    "src": "19892:28:39"
-                  },
-                  {
-                    "attributes": {
-                      "argumentTypes": null,
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-                      "isLValue": false,
-                      "isPure": false,
-                      "lValueRequested": false,
-                      "member_name": "sender",
-                      "referencedDeclaration": null,
-                      "type": "address payable"
-                    },
-                    "children": [
-                      {
-                        "attributes": {
-                          "argumentTypes": null,
-                          "overloadedDeclarations": [null],
-                          "referencedDeclaration": 28146,
-                          "type": "msg",
-                          "value": "msg"
-                        },
-                        "id": 11816,
-                        "name": "Identifier",
-                        "src": "19921:3:39"
-                      }
-                    ],
-                    "id": 11817,
-                    "name": "MemberAccess",
-                    "src": "19921:10:39"
-                  }
-                ],
-                "id": 11818,
-                "name": "ModifierInvocation",
-                "src": "19892:40:39"
-              },
-              {
-                "children": [
-                  {
-                    "attributes": {
-                      "assignments": [11821],
-                      "initialValue": null
-                    },
-                    "children": [
-                      {
-                        "attributes": {
-                          "constant": false,
-                          "name": "totalAmountToBurn",
-                          "scope": 11969,
-                          "stateVariable": false,
-                          "storageLocation": "default",
-                          "type": "uint256",
-                          "value": null,
-                          "visibility": "internal"
-                        },
-                        "children": [
-                          {
-                            "attributes": {
-                              "name": "uint256",
-                              "type": "uint256"
-                            },
-                            "id": 11820,
-                            "name": "ElementaryTypeName",
-                            "src": "19943:7:39"
-                          }
-                        ],
-                        "id": 11821,
-                        "name": "VariableDeclaration",
-                        "src": "19943:25:39"
-                      }
-                    ],
-                    "id": 11822,
-                    "name": "VariableDeclarationStatement",
-                    "src": "19943:25:39"
-                  },
-                  {
-                    "attributes": {
-                      "assignments": [11824]
-                    },
-                    "children": [
-                      {
-                        "attributes": {
-                          "constant": false,
-                          "name": "authoritySource",
-                          "scope": 11969,
-                          "stateVariable": false,
-                          "storageLocation": "default",
-                          "type": "address",
-                          "value": null,
-                          "visibility": "internal"
-                        },
-                        "children": [
-                          {
-                            "attributes": {
-                              "name": "address",
-                              "stateMutability": "nonpayable",
-                              "type": "address"
-                            },
-                            "id": 11823,
-                            "name": "ElementaryTypeName",
-                            "src": "19978:7:39"
-                          }
-                        ],
-                        "id": 11824,
-                        "name": "VariableDeclaration",
-                        "src": "19978:23:39"
-                      },
-                      {
-                        "attributes": {
-                          "argumentTypes": null,
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": false,
-                          "isStructConstructorCall": false,
-                          "lValueRequested": false,
-                          "names": [null],
-                          "type": "address",
-                          "type_conversion": false
-                        },
-                        "children": [
-                          {
-                            "attributes": {
-                              "argumentTypes": [
-                                {
-                                  "typeIdentifier": "t_address_payable",
-                                  "typeString": "address payable"
-                                }
-                              ],
-                              "overloadedDeclarations": [null],
-                              "referencedDeclaration": 1782,
-                              "type": "function (address) view returns (address)",
-                              "value": "getAuthoritySource"
-                            },
-                            "id": 11825,
-                            "name": "Identifier",
-                            "src": "20004:18:39"
-                          },
-                          {
-                            "attributes": {
-                              "argumentTypes": null,
-                              "isConstant": false,
-                              "isLValue": false,
-                              "isPure": false,
-                              "lValueRequested": false,
-                              "member_name": "sender",
-                              "referencedDeclaration": null,
-                              "type": "address payable"
-                            },
-                            "children": [
-                              {
-                                "attributes": {
-                                  "argumentTypes": null,
-                                  "overloadedDeclarations": [null],
-                                  "referencedDeclaration": 28146,
-                                  "type": "msg",
-                                  "value": "msg"
-                                },
-                                "id": 11826,
-                                "name": "Identifier",
-                                "src": "20023:3:39"
-                              }
-                            ],
-                            "id": 11827,
-                            "name": "MemberAccess",
-                            "src": "20023:10:39"
-                          }
-                        ],
-                        "id": 11828,
-                        "name": "FunctionCall",
-                        "src": "20004:30:39"
-                      }
-                    ],
-                    "id": 11829,
-                    "name": "VariableDeclarationStatement",
-                    "src": "19978:56:39"
-                  },
-                  {
-                    "children": [
-                      {
-                        "attributes": {
-                          "assignments": [11831]
-                        },
-                        "children": [
-                          {
-                            "attributes": {
-                              "constant": false,
-                              "name": "i",
-                              "scope": 11941,
-                              "stateVariable": false,
-                              "storageLocation": "default",
-                              "type": "uint256",
-                              "value": null,
-                              "visibility": "internal"
-                            },
-                            "children": [
-                              {
-                                "attributes": {
-                                  "name": "uint256",
-                                  "type": "uint256"
-                                },
-                                "id": 11830,
-                                "name": "ElementaryTypeName",
-                                "src": "20049:7:39"
-                              }
-                            ],
-                            "id": 11831,
-                            "name": "VariableDeclaration",
-                            "src": "20049:9:39"
-                          },
-                          {
-                            "attributes": {
-                              "argumentTypes": null,
-                              "hexvalue": "30",
-                              "isConstant": false,
-                              "isLValue": false,
-                              "isPure": true,
-                              "lValueRequested": false,
-                              "subdenomination": null,
-                              "token": "number",
-                              "type": "int_const 0",
-                              "value": "0"
-                            },
-                            "id": 11832,
-                            "name": "Literal",
-                            "src": "20061:1:39"
-                          }
-                        ],
-                        "id": 11833,
-                        "name": "VariableDeclarationStatement",
-                        "src": "20049:13:39"
-                      },
-                      {
-                        "attributes": {
-                          "argumentTypes": null,
-                          "commonType": {
-                            "typeIdentifier": "t_uint256",
-                            "typeString": "uint256"
-                          },
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": false,
-                          "lValueRequested": false,
-                          "operator": "<",
-                          "type": "bool"
-                        },
-                        "children": [
-                          {
-                            "attributes": {
-                              "argumentTypes": null,
-                              "overloadedDeclarations": [null],
-                              "referencedDeclaration": 11831,
-                              "type": "uint256",
-                              "value": "i"
-                            },
-                            "id": 11834,
-                            "name": "Identifier",
-                            "src": "20064:1:39"
-                          },
-                          {
-                            "attributes": {
-                              "argumentTypes": null,
-                              "isConstant": false,
-                              "isLValue": false,
-                              "isPure": false,
-                              "lValueRequested": false,
-                              "member_name": "length",
-                              "referencedDeclaration": null,
-                              "type": "uint256"
-                            },
-                            "children": [
-                              {
-                                "attributes": {
-                                  "argumentTypes": null,
-                                  "overloadedDeclarations": [null],
-                                  "referencedDeclaration": 11813,
-                                  "type": "address[] memory",
-                                  "value": "misbehavedOperators"
-                                },
-                                "id": 11835,
-                                "name": "Identifier",
-                                "src": "20068:19:39"
-                              }
-                            ],
-                            "id": 11836,
-                            "name": "MemberAccess",
-                            "src": "20068:26:39"
-                          }
-                        ],
-                        "id": 11837,
-                        "name": "BinaryOperation",
-                        "src": "20064:30:39"
-                      },
-                      {
-                        "children": [
-                          {
-                            "attributes": {
-                              "argumentTypes": null,
-                              "isConstant": false,
-                              "isLValue": false,
-                              "isPure": false,
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-              "documentation": "@notice Gets the eligible stake balance of the specified address.\n An eligible stake is a stake that passed the initialization period\n and is not currently undelegating. Also, the operator had to approve\n the specified operator contract.\n\n    /// Operator with a minimum required amount of eligible stake can join the\n network and participate in new work selection.\n\n    /// @param _operator address of stake operator.\n @param _operatorContract address of operator contract.\n @return an uint256 representing the eligible stake balance.",
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-              "documentation": "@notice Gets the active stake balance of the specified address.\n An active stake is a stake that passed the initialization period,\n and may be in the process of undelegation\n but has not been released yet,\n either because the undelegation period is not over,\n or because the operator contract has an active lock on the operator.\n Also, the operator had to approve the specified operator contract.\n\n    /// The difference between eligible stake is that active stake does not make\n the operator eligible for work selection but it may be still finishing\n earlier work until the stake is released.\n Operator with a minimum required\n amount of active stake can join the network but cannot be selected to any\n new work.\n\n    /// @param _operator address of stake operator.\n @param _operatorContract address of operator contract.\n @return an uint256 representing the eligible stake balance.",
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-                                        {
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-                                      "type": "function (address,address) view returns (bool)",
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-                                      "type": "address",
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-                                      "referencedDeclaration": 12043,
-                                      "type": "address",
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-                                },
-                                {
-                                  "typeIdentifier": "t_address_payable",
-                                  "typeString": "address payable"
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-                                {
-                                  "typeIdentifier": "t_address",
-                                  "typeString": "address"
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-                                {
-                                  "typeIdentifier": "t_uint256",
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-                              "value": "OperatorStaked"
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-                            "name": "Identifier",
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-                              "type": "address payable",
-                              "value": "beneficiary"
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-                              "referencedDeclaration": 12101,
-                              "type": "uint256",
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-              "documentation": "@notice Performs top-up to an existing operator. Tokens added during\n stake initialization period are immediatelly added to the stake and\n stake initialization timer is reset to the current block. Tokens added\n in a top-up after the stake initialization period is over are not\n included in the operator stake until the initialization period for\n a top-up passes and top-up is committed. Operator must not have the stake\n undelegated. It is expected that the top-up is done from the same source\n of tokens as the initial delegation. That is, if the tokens were\n delegated from a grant, top-up has to be performed from the same grant.\n If the delegation was done using liquid tokens, only liquid tokens from\n the same owner can be used to top-up the stake.\n Top-up can not be cancelled so it is important to be careful with the\n amount of KEEP added to the stake.\n @param _from The owner of the tokens who approved them to transfer.\n @param _value Approved amount for the transfer and top-up to\n an existing stake.\n @param _operator The new operator address.\n @param _extraData Data for stake delegation as passed to receiveApproval",
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-                      {
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-                          "constant": false,
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-                                  {
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-                                        {
-                                          "typeIdentifier": "t_contract$_TokenGrantStake_$10959",
-                                          "typeString": "contract TokenGrantStake"
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-                                              "referencedDeclaration": 11095,
-                                              "type": "contract TokenGrant",
-                                              "value": "tokenGrant"
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-                                    "attributes": {
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-                                          "typeIdentifier": "t_contract$_TokenStakingEscrow_$13399",
-                                          "typeString": "contract TokenStakingEscrow"
-                                        }
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-                                    "attributes": {
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-                                      "referencedDeclaration": 11097,
-                                      "type": "contract TokenStakingEscrow",
-                                      "value": "escrow"
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-                              "member_name": "hasGrantDelegated",
-                              "referencedDeclaration": 19375,
-                              "type": "function (struct GrantStaking.Storage storage pointer,address) view returns (bool)"
-                            },
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-                                  "type": "struct GrantStaking.Storage storage ref",
-                                  "value": "grantStaking"
-                                },
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-                      },
-                      {
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-                                          "type": "contract TokenSender",
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-              "name": "until",
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-          "name": "StakeLocked",
-          "type": "event"
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-              "name": "operator",
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-            {
-              "indexed": false,
-              "internalType": "uint256",
-              "name": "newAmount",
-              "type": "uint256"
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-          ],
-          "name": "TopUpCompleted",
-          "type": "event"
-        },
-        "0x7247f13a55f262369e97edefca12bc427eea3f7db14e50fa2fc6ff3a0a91bb6e": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "internalType": "address",
-              "name": "operator",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "internalType": "uint256",
-              "name": "topUp",
-              "type": "uint256"
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-          ],
-          "name": "TopUpInitiated",
-          "type": "event"
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-      },
-      "links": {
-        "GrantStaking": "0x5FB63D9e076a314023F2D1aB5dBFd7045C281EbA",
-        "Locks": "0xBcD7917282E529BAA6f232DdDc75F3901245A492",
-        "TopUps": "0x5D8e618f44A59dd528cce58d00801F4C8e5cfa8D"
-      },
-      "address": "0x91Fe7128f74dBd4F031ea3D90FC5Ea4DCfD81818",
-      "transactionHash": "0x5bf52dbb3587adbae2c18a63e6d164a71da9178920e21708833890f47cbac789"
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-  "networkType": "ethereum",
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-    "methods": {
-      "activeStake(address,address)": {
-        "params": {
-          "_operator": "address of stake operator.",
-          "_operatorContract": "address of operator contract."
-        },
-        "return": "an uint256 representing the eligible stake balance."
-      },
-      "authorizeOperatorContract(address,address)": {
-        "params": {
-          "_operator": "address of stake operator.",
-          "_operatorContract": "address of operator contract."
-        }
-      },
-      "authorizerOf(address)": {
-        "return": "Authorizer address."
-      },
-      "balanceOf(address)": {
-        "params": {
-          "_address": "The address to query the balance of."
-        },
-        "return": "An uint256 representing the amount staked by the passed address."
-      },
-      "beneficiaryOf(address)": {
-        "return": "Beneficiary address."
-      },
-      "cancelStake(address)": {
-        "params": {
-          "_operator": "Address of the stake operator."
-        }
-      },
-      "claimDelegatedAuthority(address)": {
-        "details": "If `delegatedAuthoritySource` is an approved operator contract and recognizes the claimant, this relationship will be recorded in `delegatedAuthority`. Later, the claimant can slash, seize, place locks etc. on operators that have authorized the `delegatedAuthoritySource`. If the `delegatedAuthoritySource` is disabled with the panic button, any recipients of delegated authority from it will also be disabled."
-      },
-      "commitTopUp(address)": {
-        "params": {
-          "_operator": "The operator with a pending top-up that is getting committed."
-        }
-      },
-      "constructor": {
-        "params": {
-          "_escrow": "Escrow dedicated for this staking contract.",
-          "_initializationPeriod": "To avoid certain attacks on work selection, recently created operators must wait for a specific period of time before being eligible for work selection.",
-          "_registry": "Keep contract registry contract.",
-          "_token": "KEEP token contract.",
-          "_tokenGrant": "KEEP token grant contract."
-        }
-      },
-      "eligibleStake(address,address)": {
-        "params": {
-          "_operator": "address of stake operator.",
-          "_operatorContract": "address of operator contract."
-        },
-        "return": "an uint256 representing the eligible stake balance."
-      },
-      "getDelegationInfo(address)": {
-        "params": {
-          "_operator": "Operator address."
-        },
-        "return": "amount The amount of tokens the given operator delegated.createdAt The time when the stake has been delegated.undelegatedAt The time when undelegation has been requested. If undelegation has not been requested, 0 is returned."
-      },
-      "getLocks(address)": {
-        "return": "creators The addresses of operator contracts that have placed a lock on the operator.expirations The expiration times of the locks placed on the operator."
-      },
-      "hasMinimumStake(address,address)": {
-        "params": {
-          "operatorContract": "Operator contract's address",
-          "staker": "Staker's address"
-        },
-        "return": "True if has enough active stake to participate in the network, false otherwise."
-      },
-      "isApprovedOperatorContract(address)": {
-        "params": {
-          "_operatorContract": "address of operator contract."
-        },
-        "return": "True if operator contract is approved, false if operator contract has not been approved or if it was disabled by the panic button."
-      },
-      "isAuthorizedForOperator(address,address)": {
-        "params": {
-          "_operator": "address of stake operator.",
-          "_operatorContract": "address of operator contract."
-        }
-      },
-      "lockStake(address,uint256)": {
-        "params": {
-          "duration": "Lock duration in seconds.",
-          "operator": "Operator address."
-        }
-      },
-      "ownerOf(address)": {
-        "return": "Stake owner address."
-      },
-      "receiveApproval(address,uint256,address,bytes)": {
-        "details": "Requires that the provided token contract be the same one linked to this contract.",
-        "params": {
-          "_extraData": "Data for stake delegation. This byte array must have the following values concatenated: - Beneficiary address (20 bytes), ignored for a top-up - Operator address (20 bytes) - Authorizer address (20 bytes), ignored for a top-up - Grant ID (32 bytes) - required only when called by TokenStakingEscrow",
-          "_from": "The owner of the tokens who approved them to transfer.",
-          "_token": "Token contract address.",
-          "_value": "Approved amount for the transfer and stake."
-        }
-      },
-      "recoverStake(address)": {
-        "params": {
-          "_operator": "Operator address."
-        }
-      },
-      "releaseExpiredLock(address,address)": {
-        "details": "Necessary for removing locks placed by contracts that have been disabled by the panic button. Also applicable to prevent inadvertent DoS of `recoverStake` if too many operator contracts have failed to clean up their locks."
-      },
-      "seize(uint256,uint256,address,address[])": {
-        "params": {
-          "amountToSeize": "Token amount to seize from every misbehaved operator.",
-          "misbehavedOperators": "Array of addresses to seize the tokens from.",
-          "rewardMultiplier": "Reward adjustment in percentage. Min 1% and 100% max.",
-          "tattletale": "Address to receive the 5% reward."
-        }
-      },
-      "slash(uint256,address[])": {
-        "params": {
-          "amountToSlash": "Token amount to slash from every misbehaved operator.",
-          "misbehavedOperators": "Array of addresses to seize the tokens from."
-        }
-      },
-      "transferStakeOwnership(address,address)": {
-        "params": {
-          "newOwner": "Address of the new staking relationship owner.",
-          "operator": "Address of the stake operator."
-        }
-      },
-      "undelegate(address)": {
-        "params": {
-          "_operator": "Address of the stake operator."
-        }
-      },
-      "undelegateAt(address,uint256)": {
-        "params": {
-          "_operator": "Address of the stake operator.",
-          "_undelegationTimestamp": "The timestamp undelegation is to start at."
-        }
-      },
-      "unlockStake(address)": {
-        "details": "Only for operator contracts. To remove expired or disabled locks, use `releaseExpiredLocks`. The authorization check ensures that the caller must have been able to place a lock on the operator sometime in the past. We don't need to check for current approval status of the caller because unlocking stake cannot harm the operator nor interfere with other operator contracts. Therefore even disabled operator contracts may freely unlock stake.",
-        "params": {
-          "operator": "Operator address."
-        }
-      }
-    },
-    "title": "TokenStaking"
-  },
-  "userdoc": {
-    "methods": {
-      "activeStake(address,address)": {
-        "notice": "Gets the active stake balance of the specified address. An active stake is a stake that passed the initialization period, and may be in the process of undelegation but has not been released yet, either because the undelegation period is not over, or because the operator contract has an active lock on the operator. Also, the operator had to approve the specified operator contract.     /// The difference between eligible stake is that active stake does not make the operator eligible for work selection but it may be still finishing earlier work until the stake is released. Operator with a minimum required amount of active stake can join the network but cannot be selected to any new work. "
-      },
-      "authorizeOperatorContract(address,address)": {
-        "notice": "Authorizes operator contract to access staked token balance of the provided operator. Can only be executed by stake operator authorizer. Contracts using delegated authority cannot be authorized with `authorizeOperatorContract`. Instead, authorize `getAuthoritySource(_operatorContract)`."
-      },
-      "authorizerOf(address)": {
-        "notice": "Gets the authorizer for the specified operator address."
-      },
-      "balanceOf(address)": {
-        "notice": "Gets the stake balance of the specified address."
-      },
-      "beneficiaryOf(address)": {
-        "notice": "Gets the beneficiary for the specified operator address."
-      },
-      "cancelStake(address)": {
-        "notice": "Cancels stake of tokens within the operator initialization period without being subjected to the token lockup for the undelegation period. This can be used to undo mistaken delegation to the wrong operator address."
-      },
-      "claimDelegatedAuthority(address)": {
-        "notice": "Grant the sender the same authority as `delegatedAuthoritySource`"
-      },
-      "commitTopUp(address)": {
-        "notice": "Commits pending top-up for the provided operator. If the top-up did not pass the initialization period, the function fails."
-      },
-      "constructor": "Creates a token staking contract for a provided Standard ERC20Burnable token.",
-      "eligibleStake(address,address)": {
-        "notice": "Gets the eligible stake balance of the specified address. An eligible stake is a stake that passed the initialization period and is not currently undelegating. Also, the operator had to approve the specified operator contract.     /// Operator with a minimum required amount of eligible stake can join the network and participate in new work selection. "
-      },
-      "getAuthoritySource(address)": {
-        "notice": "Get the source of the operator contract's authority. If the contract uses delegated authority, returns the original source of the delegated authority. If the contract doesn't use delegated authority, returns the contract itself. Authorize `getAuthoritySource(operatorContract)` to grant `operatorContract` the authority to penalize an operator."
-      },
-      "getDelegationInfo(address)": {
-        "notice": "Gets stake delegation info for the given operator."
-      },
-      "getLocks(address)": {
-        "notice": "Get the locks placed on the operator."
-      },
-      "hasMinimumStake(address,address)": {
-        "notice": "Checks if the specified account has enough active stake to become network operator and that the specified operator contract has been authorized for potential slashing.     /// Having the required minimum of active stake makes the operator eligible to join the network. If the active stake is not currently undelegating, operator is also eligible for work selection. "
-      },
-      "isApprovedOperatorContract(address)": {
-        "notice": "Checks if the operator contract is authorized in the registry. If the contract uses delegated authority it checks authorization of the source contract."
-      },
-      "isAuthorizedForOperator(address,address)": {
-        "notice": "Checks if operator contract has access to the staked token balance of the provided operator."
-      },
-      "isStakeLocked(address)": {
-        "notice": "Check whether the operator has any active locks that haven't expired yet and whose creators aren't disabled by the panic button."
-      },
-      "lockStake(address,uint256)": {
-        "notice": "Locks given operator stake for the specified duration. Locked stake may not be recovered until the lock expires or is released, even if the normal undelegation period has passed. Only previously authorized operator contract can lock the stake."
-      },
-      "minimumStake()": {
-        "notice": "Returns minimum amount of KEEP that allows sMPC cluster client to participate in the Keep network. Expressed as number with 18-decimal places. Initial minimum stake is higher than the final and lowered periodically based on the amount of steps and the length of the minimum stake schedule in seconds."
-      },
-      "ownerOf(address)": {
-        "notice": "Gets the stake owner for the specified operator address."
-      },
-      "receiveApproval(address,uint256,address,bytes)": {
-        "notice": "Receives approval of token transfer and stakes the approved amount or adds the approved amount to an existing delegation (a “top-up”). In case of a top-up, it is expected that the operator stake is not undelegated and that the top-up is performed from the same source of tokens as the initial delegation. That is, if the tokens were delegated from a grant, top-up has to be performed from the same grant. If the delegation was done using liquid tokens, only liquid tokens from the same owner can be used to top-up the stake. Top-up can not be cancelled so it is important to be careful with the amount of KEEP added to the stake."
-      },
-      "recoverStake(address)": {
-        "notice": "Recovers staked tokens and transfers them back to the owner. Recovering tokens can only be performed when the operator finished undelegating."
-      },
-      "releaseExpiredLock(address,address)": {
-        "notice": "Removes the lock of the specified operator contract if the lock has expired or the contract has been disabled."
-      },
-      "seize(uint256,uint256,address,address[])": {
-        "notice": "Seize provided token amount from every member in the misbehaved operators array. The tattletale is rewarded with 5% of the total seized amount scaled by the reward adjustment parameter and the rest 95% is burned."
-      },
-      "slash(uint256,address[])": {
-        "notice": "Slash provided token amount from every member in the misbehaved operators array and burn 100% of all the tokens."
-      },
-      "transferStakeOwnership(address,address)": {
-        "notice": "Allows the current staking relationship owner to transfer the ownership to someone else."
-      },
-      "undelegate(address)": {
-        "notice": "Undelegates staked tokens. You will be able to recover your stake by calling `recoverStake()` with operator address once undelegation period is over."
-      },
-      "undelegateAt(address,uint256)": {
-        "notice": "Set an undelegation time for staked tokens. Undelegation will begin at the specified timestamp. You will be able to recover your stake by calling `recoverStake()` with operator address once undelegation period is over."
-      },
-      "undelegationPeriod()": {
-        "notice": "Returns the current value of the undelegation period. The staking contract guarantees that an undelegated operator’s stakes will stay locked for a period of time after undelegation, and thus available as collateral for any work the operator is engaged in. The undelegation period is two weeks for the first two months and two months after that."
-      },
-      "unlockStake(address)": {
-        "notice": "Removes a lock the caller had previously placed on the operator."
-      }
-    },
-    "notice": "A token staking contract for a specified standard ERC20Burnable token. A holder of the specified token can stake delegate its tokens to this contract and recover the stake after undelegation period is over."
-  }
-}
diff --git a/hardhat.config.ts b/hardhat.config.ts
index c27305dc..899cc0a2 100644
--- a/hardhat.config.ts
+++ b/hardhat.config.ts
@@ -80,7 +80,6 @@ const config: HardhatUserConfig = {
       // For hardhat environment we can fork the mainnet, so we need to point it
       // to the contract artifacts.
       hardhat: process.env.FORKING_URL ? ["./external/mainnet"] : [],
-      sepolia: ["./external/sepolia"],
       mainnet: ["./external/mainnet"],
     },
   },
@@ -93,10 +92,6 @@ const config: HardhatUserConfig = {
     thresholdCouncil: {
       mainnet: "0x9F6e831c8F8939DC0C830C6e492e7cEf4f9C2F5f",
     },
-    keepRegistryKeeper: {
-      default: 1, // same as the deployer
-      sepolia: "0x68ad60CC5e8f3B7cC53beaB321cf0e6036962dBc",
-    },
   },
   mocha: {
     timeout: 60000,
diff --git a/package.json b/package.json
index dd7f6ff9..b21ae812 100644
--- a/package.json
+++ b/package.json
@@ -58,12 +58,8 @@
     "typescript": "^4.4.4"
   },
   "dependencies": {
-    "@keep-network/keep-core": ">1.8.1-dev <1.8.1-goerli",
     "@openzeppelin/contracts": "~4.5.0",
     "@openzeppelin/contracts-upgradeable": "~4.5.2",
     "@thesis/solidity-contracts": "github:thesis/solidity-contracts#4985bcf"
-  },
-  "peerDependencies": {
-    "@keep-network/keep-core": ">1.8.1-dev <1.8.1-goerli"
   }
 }
diff --git a/test/staking/TokenStaking.test.js b/test/staking/TokenStaking.test.js
index 080907b6..bf91e4ee 100644
--- a/test/staking/TokenStaking.test.js
+++ b/test/staking/TokenStaking.test.js
@@ -2,7 +2,7 @@ const { expect } = require("chai")
 
 const { helpers } = require("hardhat")
 const { lastBlockTime, mineBlocks, increaseTime } = helpers.time
-const { to1e18, to1ePrecision } = helpers.number
+const { to1e18 } = helpers.number
 
 const { AddressZero, Zero } = ethers.constants
 
@@ -11,6 +11,7 @@ const StakeTypes = {
   KEEP: 1,
   T: 2,
 }
+
 const ApplicationStatus = {
   NOT_APPROVED: 0,
   APPROVED: 1,
@@ -21,28 +22,10 @@ const { upgrades } = require("hardhat")
 
 describe("TokenStaking", () => {
   let tToken
-  let nucypherVendingMachine
   let application1Mock
   let application2Mock
 
-  const floatingPointDivisor = to1ePrecision(1, 15)
   const tAllocation = to1e18("4500000000") // 4.5 Billion
-  const maxKeepWrappedTokens = to1e18("1100000000") // 1.1 Billion
-  const maxNuWrappedTokens = to1e18("900000000") // 0.9 Billion
-  const keepRatio = floatingPointDivisor
-    .mul(tAllocation)
-    .div(maxKeepWrappedTokens)
-  const nuRatio = floatingPointDivisor.mul(tAllocation).div(maxNuWrappedTokens)
-
-  function convertToT(amount, ratio) {
-    amount = ethers.BigNumber.from(amount)
-    const wrappedRemainder = amount.mod(floatingPointDivisor)
-    amount = amount.sub(wrappedRemainder)
-    return {
-      result: amount.mul(ratio).div(floatingPointDivisor),
-      remainder: wrappedRemainder,
-    }
-  }
 
   function rewardFromPenalty(penalty, rewardMultiplier) {
     return penalty.mul(5).div(100).mul(rewardMultiplier).div(100)
@@ -88,20 +71,13 @@ describe("TokenStaking", () => {
       .connect(deployer)
       .transfer(otherStaker.address, initialStakerBalance)
 
-    const VendingMachine = await ethers.getContractFactory("VendingMachineMock")
-    nucypherVendingMachine = await VendingMachine.deploy(
-      maxNuWrappedTokens,
-      tAllocation
-    )
-    await nucypherVendingMachine.deployed()
-
-    const TokenStaking = await ethers.getContractFactory("LegacyTokenStaking")
+    const TokenStaking = await ethers.getContractFactory("TokenStaking")
     const tokenStakingInitializerArgs = []
     tokenStaking = await upgrades.deployProxy(
       TokenStaking,
       tokenStakingInitializerArgs,
       {
-        constructorArgs: [tToken.address, nucypherVendingMachine.address],
+        constructorArgs: [tToken.address],
       }
     )
     await tokenStaking.deployed()
@@ -292,10 +268,7 @@ describe("TokenStaking", () => {
         })
 
         it("should set value of stakes", async () => {
-          await assertStakes(stakingProvider.address, amount, Zero, Zero)
-          expect(await tokenStaking.stakedNu(stakingProvider.address)).to.equal(
-            0
-          )
+          await assertStake(stakingProvider.address, amount)
         })
 
         it("should start staking timestamp", async () => {
@@ -643,27 +616,9 @@ describe("TokenStaking", () => {
                   application1Mock.address
                 )
               ).to.equal(authorizedAmount)
-            })
-
-            it("should increase min staked amount in T", async () => {
               expect(
-                await tokenStaking.getMinStaked(
-                  stakingProvider.address,
-                  StakeTypes.T
-                )
+                await tokenStaking.getMaxAuthorization(stakingProvider.address)
               ).to.equal(authorizedAmount)
-              expect(
-                await tokenStaking.getMinStaked(
-                  stakingProvider.address,
-                  StakeTypes.NU
-                )
-              ).to.equal(0)
-              expect(
-                await tokenStaking.getMinStaked(
-                  stakingProvider.address,
-                  StakeTypes.KEEP
-                )
-              ).to.equal(0)
             })
 
             it("should decrease available amount to authorize for one application", async () => {
@@ -756,6 +711,9 @@ describe("TokenStaking", () => {
                   application1Mock.address
                 )
               ).to.equal(amount)
+              expect(
+                await tokenStaking.getMaxAuthorization(stakingProvider.address)
+              ).to.equal(amount)
             })
 
             it("should decrease available amount to authorize for one application", async () => {
@@ -773,27 +731,6 @@ describe("TokenStaking", () => {
               ).to.equal(amount)
             })
 
-            it("should increase min staked amount in T", async () => {
-              expect(
-                await tokenStaking.getMinStaked(
-                  stakingProvider.address,
-                  StakeTypes.T
-                )
-              ).to.equal(amount)
-              expect(
-                await tokenStaking.getMinStaked(
-                  stakingProvider.address,
-                  StakeTypes.NU
-                )
-              ).to.equal(0)
-              expect(
-                await tokenStaking.getMinStaked(
-                  stakingProvider.address,
-                  StakeTypes.KEEP
-                )
-              ).to.equal(0)
-            })
-
             it("should inform application", async () => {
               await assertApplicationStakingProviders(
                 application1Mock,
@@ -871,245 +808,6 @@ describe("TokenStaking", () => {
         })
       }
     )
-
-    context(
-      "when caller is authorizer of staking provider with mixed stake",
-      () => {
-        const tStake = initialStakerBalance
-        const keepStake = initialStakerBalance
-        const keepInTStake = convertToT(keepStake, keepRatio).result
-        const nuStake = initialStakerBalance
-        const nuInTStake = convertToT(nuStake, nuRatio).result
-
-        beforeEach(async () => {
-          await tokenStaking
-            .connect(deployer)
-            .approveApplication(application1Mock.address)
-
-          await tokenStaking.setLegacyStakingProvider(
-            stakingProvider.address,
-            staker.address,
-            beneficiary.address,
-            authorizer.address
-          )
-          await tokenStaking.addLegacyStake(
-            stakingProvider.address,
-            keepInTStake,
-            nuInTStake
-          )
-
-          await tToken.connect(staker).approve(tokenStaking.address, tStake)
-          await tokenStaking
-            .connect(staker)
-            .topUp(stakingProvider.address, tStake)
-        })
-
-        context("when authorize more than not legacy staked amount", () => {
-          it("should revert", async () => {
-            await expect(
-              tokenStaking
-                .connect(authorizer)
-                .increaseAuthorization(
-                  stakingProvider.address,
-                  application1Mock.address,
-                  tStake.add(1)
-                )
-            ).to.be.revertedWith("Not enough stake to authorize")
-          })
-        })
-
-        context("when authorize staked tokens in one tx", () => {
-          let tx
-          const notAuthorized = tStake.sub(to1e18(1))
-          const authorizedAmount = tStake.sub(notAuthorized)
-
-          beforeEach(async () => {
-            tx = await tokenStaking
-              .connect(authorizer)
-              .increaseAuthorization(
-                stakingProvider.address,
-                application1Mock.address,
-                authorizedAmount
-              )
-          })
-
-          it("should increase authorization", async () => {
-            expect(
-              await tokenStaking.authorizedStake(
-                stakingProvider.address,
-                application1Mock.address
-              )
-            ).to.equal(authorizedAmount)
-          })
-
-          it("should increase min staked amount in T only", async () => {
-            expect(
-              await tokenStaking.getMinStaked(
-                stakingProvider.address,
-                StakeTypes.T
-              )
-            ).to.equal(authorizedAmount)
-            expect(
-              await tokenStaking.getMinStaked(
-                stakingProvider.address,
-                StakeTypes.NU
-              )
-            ).to.equal(0)
-            expect(
-              await tokenStaking.getMinStaked(
-                stakingProvider.address,
-                StakeTypes.KEEP
-              )
-            ).to.equal(0)
-          })
-
-          it("should decrease available amount to authorize for one application", async () => {
-            expect(
-              await tokenStaking.getAvailableToAuthorize(
-                stakingProvider.address,
-                application1Mock.address
-              )
-            ).to.equal(notAuthorized)
-            expect(
-              await tokenStaking.getAvailableToAuthorize(
-                stakingProvider.address,
-                application2Mock.address
-              )
-            ).to.equal(tStake)
-          })
-
-          it("should inform application", async () => {
-            await assertApplicationStakingProviders(
-              application1Mock,
-              stakingProvider.address,
-              authorizedAmount,
-              Zero
-            )
-          })
-
-          it("should emit AuthorizationIncreased", async () => {
-            await expect(tx)
-              .to.emit(tokenStaking, "AuthorizationIncreased")
-              .withArgs(
-                stakingProvider.address,
-                application1Mock.address,
-                0,
-                authorizedAmount
-              )
-          })
-
-          context("when authorize to the second application", () => {
-            let tx2
-
-            beforeEach(async () => {
-              await tokenStaking
-                .connect(deployer)
-                .approveApplication(application2Mock.address)
-
-              tx2 = await tokenStaking
-                .connect(authorizer)
-                .increaseAuthorization(
-                  stakingProvider.address,
-                  application2Mock.address,
-                  tStake
-                )
-            })
-
-            it("should increase only one authorization", async () => {
-              expect(
-                await tokenStaking.authorizedStake(
-                  stakingProvider.address,
-                  application1Mock.address
-                )
-              ).to.equal(authorizedAmount)
-              expect(
-                await tokenStaking.authorizedStake(
-                  stakingProvider.address,
-                  application2Mock.address
-                )
-              ).to.equal(tStake)
-            })
-
-            it("should set min staked amount equal to T stake", async () => {
-              expect(
-                await tokenStaking.getMinStaked(
-                  stakingProvider.address,
-                  StakeTypes.T
-                )
-              ).to.equal(tStake)
-              expect(
-                await tokenStaking.getMinStaked(
-                  stakingProvider.address,
-                  StakeTypes.NU
-                )
-              ).to.equal(0)
-              expect(
-                await tokenStaking.getMinStaked(
-                  stakingProvider.address,
-                  StakeTypes.KEEP
-                )
-              ).to.equal(0)
-            })
-
-            it("should decrease available amount to authorize for the second application", async () => {
-              expect(
-                await tokenStaking.getAvailableToAuthorize(
-                  stakingProvider.address,
-                  application1Mock.address
-                )
-              ).to.equal(notAuthorized)
-              expect(
-                await tokenStaking.getAvailableToAuthorize(
-                  stakingProvider.address,
-                  application2Mock.address
-                )
-              ).to.equal(0)
-            })
-
-            it("should inform second application", async () => {
-              await assertApplicationStakingProviders(
-                application2Mock,
-                stakingProvider.address,
-                tStake,
-                Zero
-              )
-            })
-
-            it("should emit AuthorizationIncreased", async () => {
-              await expect(tx2)
-                .to.emit(tokenStaking, "AuthorizationIncreased")
-                .withArgs(
-                  stakingProvider.address,
-                  application2Mock.address,
-                  0,
-                  tStake
-                )
-            })
-          })
-        })
-
-        context("when authorize more than staked amount in several txs", () => {
-          it("should revert", async () => {
-            await tokenStaking
-              .connect(authorizer)
-              .increaseAuthorization(
-                stakingProvider.address,
-                application1Mock.address,
-                tStake.sub(1)
-              )
-            await expect(
-              tokenStaking
-                .connect(authorizer)
-                .increaseAuthorization(
-                  stakingProvider.address,
-                  application1Mock.address,
-                  2
-                )
-            ).to.be.revertedWith("Not enough stake to authorize")
-          })
-        })
-      }
-    )
   })
 
   describe("requestAuthorizationDecrease", () => {
@@ -1520,24 +1218,9 @@ describe("TokenStaking", () => {
             application1Mock.address
           )
         ).to.equal(expectedToAmount)
-      })
-
-      it("should decrease min staked amount in T", async () => {
         expect(
-          await tokenStaking.getMinStaked(stakingProvider.address, StakeTypes.T)
+          await tokenStaking.getMaxAuthorization(stakingProvider.address)
         ).to.equal(expectedToAmount)
-        expect(
-          await tokenStaking.getMinStaked(
-            stakingProvider.address,
-            StakeTypes.NU
-          )
-        ).to.equal(0)
-        expect(
-          await tokenStaking.getMinStaked(
-            stakingProvider.address,
-            StakeTypes.KEEP
-          )
-        ).to.equal(0)
       })
 
       it("should emit AuthorizationDecreaseApproved", async () => {
@@ -1594,27 +1277,9 @@ describe("TokenStaking", () => {
               application2Mock.address
             )
           ).to.equal(otherAmount)
-        })
-
-        it("should decrease min staked amount in T", async () => {
           expect(
-            await tokenStaking.getMinStaked(
-              stakingProvider.address,
-              StakeTypes.T
-            )
+            await tokenStaking.getMaxAuthorization(stakingProvider.address)
           ).to.equal(otherAmount)
-          expect(
-            await tokenStaking.getMinStaked(
-              stakingProvider.address,
-              StakeTypes.NU
-            )
-          ).to.equal(0)
-          expect(
-            await tokenStaking.getMinStaked(
-              stakingProvider.address,
-              StakeTypes.KEEP
-            )
-          ).to.equal(0)
         })
 
         it("should emit AuthorizationDecreaseApproved", async () => {
@@ -2166,7 +1831,7 @@ describe("TokenStaking", () => {
       })
 
       it("should update T staked amount", async () => {
-        await assertStakes(stakingProvider.address, expectedAmount, Zero, Zero)
+        await assertStake(stakingProvider.address, expectedAmount)
       })
 
       it("should not update roles", async () => {
@@ -2196,22 +1861,10 @@ describe("TokenStaking", () => {
         ).to.equal(topUpAmount)
       })
 
-      it("should not increase min staked amount", async () => {
+      it("should not increase authorized amount", async () => {
         expect(
-          await tokenStaking.getMinStaked(stakingProvider.address, StakeTypes.T)
+          await tokenStaking.getMaxAuthorization(stakingProvider.address)
         ).to.equal(amount)
-        expect(
-          await tokenStaking.getMinStaked(
-            stakingProvider.address,
-            StakeTypes.NU
-          )
-        ).to.equal(0)
-        expect(
-          await tokenStaking.getMinStaked(
-            stakingProvider.address,
-            StakeTypes.KEEP
-          )
-        ).to.equal(0)
       })
 
       it("should emit ToppedUp event", async () => {
@@ -2258,14 +1911,16 @@ describe("TokenStaking", () => {
 
         await increaseTime(86400) // +24h
 
-        await tokenStaking.connect(staker).unstakeAll(stakingProvider.address)
+        await tokenStaking
+          .connect(staker)
+          .unstakeT(stakingProvider.address, amount)
         tx = await tokenStaking
           .connect(staker)
           .topUp(stakingProvider.address, amount)
       })
 
       it("should update T staked amount", async () => {
-        await assertStakes(stakingProvider.address, amount, Zero, Zero)
+        await assertStake(stakingProvider.address, amount)
       })
 
       it("should not update start staking timestamp", async () => {
@@ -2281,206 +1936,16 @@ describe("TokenStaking", () => {
       })
     })
 
-    context("when staking provider has Keep stake", () => {
-      const keepAmount = initialStakerBalance
-      const keepInTAmount = convertToT(keepAmount, keepRatio).result
-      const topUpAmount = initialStakerBalance.mul(2)
-      const expectedAmount = keepInTAmount.add(topUpAmount)
+    context("when auto increase flag is enabled", () => {
+      const amount = initialStakerBalance.div(2)
+      const topUpAmount = initialStakerBalance
+      const expectedAmount = amount.add(topUpAmount)
+      const authorized1 = amount
+      const authorized2 = amount.div(2)
       let tx
-      let blockTimestamp
 
       beforeEach(async () => {
-        await tokenStaking
-          .connect(deployer)
-          .setMinimumStakeAmount(topUpAmount.add(1))
-
-        await tokenStaking.setLegacyStakingProvider(
-          stakingProvider.address,
-          staker.address,
-          beneficiary.address,
-          authorizer.address
-        )
-        await tokenStaking.addLegacyStake(
-          stakingProvider.address,
-          keepInTAmount,
-          0
-        )
-        blockTimestamp = await lastBlockTime()
-
-        await tokenStaking
-          .connect(staker)
-          .delegateVoting(stakingProvider.address, delegatee.address)
-        await tToken.connect(deployer).transfer(authorizer.address, topUpAmount)
-        await tToken
-          .connect(authorizer)
-          .approve(tokenStaking.address, topUpAmount)
-        tx = await tokenStaking
-          .connect(authorizer)
-          .topUp(stakingProvider.address, topUpAmount)
-      })
-
-      it("should update only T staked amount", async () => {
-        await assertStakes(
-          stakingProvider.address,
-          topUpAmount,
-          keepInTAmount,
-          Zero
-        )
-      })
-
-      it("should not update roles", async () => {
-        expect(
-          await tokenStaking.rolesOf(stakingProvider.address)
-        ).to.deep.equal([
-          staker.address,
-          beneficiary.address,
-          authorizer.address,
-        ])
-      })
-
-      it("should not update start staking timestamp", async () => {
-        expect(
-          await tokenStaking.getStartStakingTimestamp(stakingProvider.address)
-        ).to.equal(blockTimestamp)
-      })
-
-      it("should increase available amount to authorize", async () => {
-        expect(
-          await tokenStaking.getAvailableToAuthorize(
-            stakingProvider.address,
-            application1Mock.address
-          )
-        ).to.equal(topUpAmount)
-      })
-
-      it("should transfer tokens to the staking contract", async () => {
-        expect(await tToken.balanceOf(tokenStaking.address)).to.equal(
-          topUpAmount
-        )
-      })
-
-      it("should emit ToppedUp event", async () => {
-        await expect(tx)
-          .to.emit(tokenStaking, "ToppedUp")
-          .withArgs(stakingProvider.address, topUpAmount)
-      })
-
-      it("should increase the delegatee voting power", async () => {
-        expect(await tokenStaking.getVotes(delegatee.address)).to.equal(
-          expectedAmount
-        )
-      })
-
-      it("should increase the total voting power", async () => {
-        const lastBlock = await mineBlocks(1)
-        expect(await tokenStaking.getPastTotalSupply(lastBlock - 1)).to.equal(
-          expectedAmount
-        )
-      })
-    })
-
-    context("when staking provider has NuCypher stake", () => {
-      const nuAmount = initialStakerBalance
-      const nuInTAmount = convertToT(nuAmount, nuRatio).result
-      const topUpAmount = initialStakerBalance.mul(2)
-      const expectedAmount = nuInTAmount.add(topUpAmount)
-      let tx
-      let blockTimestamp
-
-      beforeEach(async () => {
-        await tokenStaking.setLegacyStakingProvider(
-          stakingProvider.address,
-          staker.address,
-          staker.address,
-          staker.address
-        )
-        await tokenStaking.addLegacyStake(
-          stakingProvider.address,
-          0,
-          nuInTAmount
-        )
-        blockTimestamp = await lastBlockTime()
-
-        await tokenStaking
-          .connect(staker)
-          .delegateVoting(stakingProvider.address, delegatee.address)
-        await tToken
-          .connect(deployer)
-          .transfer(stakingProvider.address, topUpAmount)
-        await tToken
-          .connect(stakingProvider)
-          .approve(tokenStaking.address, topUpAmount)
-        tx = await tokenStaking
-          .connect(stakingProvider)
-          .topUp(stakingProvider.address, topUpAmount)
-      })
-
-      it("should update only T staked amount", async () => {
-        await assertStakes(
-          stakingProvider.address,
-          topUpAmount,
-          Zero,
-          nuInTAmount
-        )
-      })
-
-      it("should not update roles", async () => {
-        expect(
-          await tokenStaking.rolesOf(stakingProvider.address)
-        ).to.deep.equal([staker.address, staker.address, staker.address])
-      })
-
-      it("should not update start staking timestamp", async () => {
-        expect(
-          await tokenStaking.getStartStakingTimestamp(stakingProvider.address)
-        ).to.equal(blockTimestamp)
-      })
-
-      it("should increase available amount to authorize", async () => {
-        expect(
-          await tokenStaking.getAvailableToAuthorize(
-            stakingProvider.address,
-            application1Mock.address
-          )
-        ).to.equal(topUpAmount)
-      })
-
-      it("should transfer tokens to the staking contract", async () => {
-        expect(await tToken.balanceOf(tokenStaking.address)).to.equal(
-          topUpAmount
-        )
-      })
-
-      it("should emit ToppedUp event", async () => {
-        await expect(tx)
-          .to.emit(tokenStaking, "ToppedUp")
-          .withArgs(stakingProvider.address, topUpAmount)
-      })
-
-      it("should increase the delegatee voting power", async () => {
-        expect(await tokenStaking.getVotes(delegatee.address)).to.equal(
-          expectedAmount
-        )
-      })
-
-      it("should increase the total voting power", async () => {
-        const lastBlock = await mineBlocks(1)
-        expect(await tokenStaking.getPastTotalSupply(lastBlock - 1)).to.equal(
-          expectedAmount
-        )
-      })
-    })
-
-    context("when auto increase flag is enabled", () => {
-      const amount = initialStakerBalance.div(2)
-      const topUpAmount = initialStakerBalance
-      const expectedAmount = amount.add(topUpAmount)
-      const authorized1 = amount
-      const authorized2 = amount.div(2)
-      let tx
-
-      beforeEach(async () => {
-        await tToken.connect(staker).approve(tokenStaking.address, amount)
+        await tToken.connect(staker).approve(tokenStaking.address, amount)
         await tokenStaking
           .connect(staker)
           .stake(
@@ -2525,7 +1990,7 @@ describe("TokenStaking", () => {
       })
 
       it("should update T staked amount", async () => {
-        await assertStakes(stakingProvider.address, expectedAmount, Zero, Zero)
+        await assertStake(stakingProvider.address, expectedAmount)
       })
 
       it("should not increase available amount to authorize", async () => {
@@ -2543,22 +2008,10 @@ describe("TokenStaking", () => {
         ).to.equal(amount.sub(authorized2))
       })
 
-      it("should increase min staked amount", async () => {
+      it("should increase authorized amount", async () => {
         expect(
-          await tokenStaking.getMinStaked(stakingProvider.address, StakeTypes.T)
+          await tokenStaking.getMaxAuthorization(stakingProvider.address)
         ).to.equal(expectedAmount)
-        expect(
-          await tokenStaking.getMinStaked(
-            stakingProvider.address,
-            StakeTypes.NU
-          )
-        ).to.equal(0)
-        expect(
-          await tokenStaking.getMinStaked(
-            stakingProvider.address,
-            StakeTypes.KEEP
-          )
-        ).to.equal(0)
       })
 
       it("should emit ToppedUp event", async () => {
@@ -2738,29 +2191,6 @@ describe("TokenStaking", () => {
       })
     })
 
-    context("when stake is only in Keep and Nu", () => {
-      it("should revert", async () => {
-        await tokenStaking.setLegacyStakingProvider(
-          stakingProvider.address,
-          staker.address,
-          beneficiary.address,
-          authorizer.address
-        )
-        await tokenStaking.addLegacyStake(
-          stakingProvider.address,
-          initialStakerBalance,
-          initialStakerBalance
-        )
-
-        const amountToUnstake = 1
-        await expect(
-          tokenStaking
-            .connect(stakingProvider)
-            .unstakeT(stakingProvider.address, amountToUnstake)
-        ).to.be.revertedWith("Too much to unstake")
-      })
-    })
-
     context("when amount to unstake is more than not authorized", () => {
       it("should revert", async () => {
         const amount = initialStakerBalance
@@ -2843,24 +2273,6 @@ describe("TokenStaking", () => {
           ).to.be.revertedWith("Can't unstake earlier than 24h")
         })
       })
-
-      context("when another stake type was topped-up", () => {
-        it("should revert", async () => {
-          const nuAmount = initialStakerBalance
-          await tokenStaking.addLegacyStake(
-            stakingProvider.address,
-            0,
-            nuAmount
-          )
-
-          const amountToUnstake = amount
-          await expect(
-            tokenStaking
-              .connect(staker)
-              .unstakeT(stakingProvider.address, amountToUnstake)
-          ).to.be.revertedWith("Can't unstake earlier than 24h")
-        })
-      })
     })
 
     context("when unstake after minimum staking time passes", () => {
@@ -2890,7 +2302,7 @@ describe("TokenStaking", () => {
       })
 
       it("should update T staked amount", async () => {
-        await assertStakes(stakingProvider.address, Zero, Zero, Zero)
+        await assertStake(stakingProvider.address, Zero)
       })
 
       it("should not update roles", async () => {
@@ -2901,746 +2313,25 @@ describe("TokenStaking", () => {
           beneficiary.address,
           authorizer.address,
         ])
-      })
-
-      it("should not update start staking timestamp", async () => {
-        expect(
-          await tokenStaking.getStartStakingTimestamp(stakingProvider.address)
-        ).to.equal(blockTimestamp)
-      })
-
-      it("should transfer tokens to the staker address", async () => {
-        expect(await tToken.balanceOf(tokenStaking.address)).to.equal(0)
-        expect(await tToken.balanceOf(staker.address)).to.equal(amount)
-      })
-
-      it("should emit Unstaked", async () => {
-        await expect(tx)
-          .to.emit(tokenStaking, "Unstaked")
-          .withArgs(stakingProvider.address, amount)
-      })
-    })
-  })
-
-  describe("unstakeKeep", () => {
-    context("when staking provider has no stake", () => {
-      it("should revert", async () => {
-        await expect(
-          tokenStaking.unstakeKeep(deployer.address)
-        ).to.be.revertedWith("Not owner or provider")
-      })
-    })
-
-    context("when caller is not owner or staking provider", () => {
-      it("should revert", async () => {
-        await tToken
-          .connect(staker)
-          .approve(tokenStaking.address, initialStakerBalance)
-        await tokenStaking
-          .connect(staker)
-          .stake(
-            stakingProvider.address,
-            beneficiary.address,
-            authorizer.address,
-            initialStakerBalance
-          )
-        await expect(
-          tokenStaking.connect(authorizer).unstakeKeep(stakingProvider.address)
-        ).to.be.revertedWith("Not owner or provider")
-      })
-    })
-
-    context("when stake is only in T and Nu", () => {
-      it("should revert", async () => {
-        await tToken
-          .connect(staker)
-          .approve(tokenStaking.address, initialStakerBalance)
-        await tokenStaking
-          .connect(staker)
-          .stake(
-            stakingProvider.address,
-            beneficiary.address,
-            authorizer.address,
-            initialStakerBalance
-          )
-
-        await tokenStaking.addLegacyStake(
-          stakingProvider.address,
-          0,
-          initialStakerBalance
-        )
-
-        await expect(
-          tokenStaking
-            .connect(stakingProvider)
-            .unstakeKeep(stakingProvider.address)
-        ).to.be.revertedWith("Nothing to unstake")
-      })
-    })
-
-    context("when authorized amount is more than non-Keep stake", () => {
-      it("should revert", async () => {
-        const tAmount = initialStakerBalance
-        const keepAmount = initialStakerBalance
-
-        await tokenStaking
-          .connect(deployer)
-          .approveApplication(application1Mock.address)
-        await tokenStaking.setLegacyStakingProvider(
-          stakingProvider.address,
-          staker.address,
-          beneficiary.address,
-          authorizer.address
-        )
-        await tokenStaking.addLegacyStake(
-          stakingProvider.address,
-          keepAmount,
-          0
-        )
-
-        await tToken.connect(staker).approve(tokenStaking.address, tAmount)
-        await tokenStaking
-          .connect(staker)
-          .topUp(stakingProvider.address, tAmount)
-
-        const authorized = tAmount.add(1)
-        await tokenStaking
-          .connect(authorizer)
-          .forceIncreaseAuthorization(
-            stakingProvider.address,
-            application1Mock.address,
-            authorized
-          )
-
-        await expect(
-          tokenStaking.connect(staker).unstakeKeep(stakingProvider.address)
-        ).to.be.revertedWith("Keep stake still authorized")
-      })
-    })
-
-    context("when authorized amount is less than non-Keep stake", () => {
-      const tAmount = initialStakerBalance
-      const keepAmount = initialStakerBalance
-      const keepInTAmount = convertToT(keepAmount, keepRatio).result
-      const authorized = tAmount
-      let tx
-      let blockTimestamp
-
-      beforeEach(async () => {
-        await tokenStaking
-          .connect(deployer)
-          .approveApplication(application1Mock.address)
-
-        await tokenStaking.setLegacyStakingProvider(
-          stakingProvider.address,
-          staker.address,
-          beneficiary.address,
-          authorizer.address
-        )
-        await tokenStaking.addLegacyStake(
-          stakingProvider.address,
-          keepInTAmount,
-          0
-        )
-        blockTimestamp = await lastBlockTime()
-
-        await tokenStaking
-          .connect(staker)
-          .delegateVoting(stakingProvider.address, delegatee.address)
-
-        await tToken.connect(staker).approve(tokenStaking.address, tAmount)
-        await tokenStaking
-          .connect(staker)
-          .topUp(stakingProvider.address, tAmount)
-
-        await tokenStaking
-          .connect(authorizer)
-          .increaseAuthorization(
-            stakingProvider.address,
-            application1Mock.address,
-            authorized
-          )
-
-        tx = await tokenStaking
-          .connect(stakingProvider)
-          .unstakeKeep(stakingProvider.address)
-      })
-
-      it("should set Keep staked amount to zero", async () => {
-        await assertStakes(stakingProvider.address, tAmount, Zero, Zero)
-      })
-
-      it("should not update roles", async () => {
-        expect(
-          await tokenStaking.rolesOf(stakingProvider.address)
-        ).to.deep.equal([
-          staker.address,
-          beneficiary.address,
-          authorizer.address,
-        ])
-      })
-
-      it("should not update start staking timestamp", async () => {
-        expect(
-          await tokenStaking.getStartStakingTimestamp(stakingProvider.address)
-        ).to.equal(blockTimestamp)
-      })
-
-      it("should decrease available amount to authorize", async () => {
-        expect(
-          await tokenStaking.getAvailableToAuthorize(
-            stakingProvider.address,
-            application1Mock.address
-          )
-        ).to.equal(tAmount.sub(authorized))
-      })
-
-      it("should update min staked amount", async () => {
-        expect(
-          await tokenStaking.getMinStaked(stakingProvider.address, StakeTypes.T)
-        ).to.equal(tAmount)
-        expect(
-          await tokenStaking.getMinStaked(
-            stakingProvider.address,
-            StakeTypes.NU
-          )
-        ).to.equal(0)
-        expect(
-          await tokenStaking.getMinStaked(
-            stakingProvider.address,
-            StakeTypes.KEEP
-          )
-        ).to.equal(0)
-      })
-
-      it("should emit Unstaked", async () => {
-        await expect(tx)
-          .to.emit(tokenStaking, "Unstaked")
-          .withArgs(stakingProvider.address, keepInTAmount)
-      })
-
-      it("should decrease the delegatee voting power", async () => {
-        expect(await tokenStaking.getVotes(delegatee.address)).to.equal(tAmount)
-      })
-
-      it("should decrease the total voting power", async () => {
-        const lastBlock = await mineBlocks(1)
-        expect(await tokenStaking.getPastTotalSupply(lastBlock - 1)).to.equal(
-          tAmount
-        )
-      })
-    })
-  })
-
-  describe("unstakeNu", () => {
-    context("when staking provider has no stake", () => {
-      it("should revert", async () => {
-        await expect(
-          tokenStaking.unstakeNu(deployer.address)
-        ).to.be.revertedWith("Not owner or provider")
-      })
-    })
-
-    context("when caller is not owner or staking provider", () => {
-      it("should revert", async () => {
-        await tokenStaking.setLegacyStakingProvider(
-          stakingProvider.address,
-          staker.address,
-          beneficiary.address,
-          authorizer.address
-        )
-        await tokenStaking.addLegacyStake(
-          stakingProvider.address,
-          0,
-          initialStakerBalance
-        )
-        await expect(
-          tokenStaking.connect(authorizer).unstakeNu(stakingProvider.address)
-        ).to.be.revertedWith("Not owner or provider")
-      })
-    })
-
-    context("when stake is only in Keep and T", () => {
-      it("should revert", async () => {
-        await tokenStaking.setLegacyStakingProvider(
-          stakingProvider.address,
-          staker.address,
-          beneficiary.address,
-          authorizer.address
-        )
-        await tokenStaking.addLegacyStake(
-          stakingProvider.address,
-          initialStakerBalance,
-          0
-        )
-
-        await tToken
-          .connect(staker)
-          .approve(tokenStaking.address, initialStakerBalance)
-        await tokenStaking
-          .connect(staker)
-          .topUp(stakingProvider.address, initialStakerBalance)
-
-        await expect(
-          tokenStaking
-            .connect(stakingProvider)
-            .unstakeNu(stakingProvider.address)
-        ).to.be.revertedWith("Nothing to unstake")
-      })
-    })
-
-    context("when amount to unstake is more than not authorized", () => {
-      it("should revert", async () => {
-        const nuAmount = initialStakerBalance
-        const nuInTAmount = convertToT(nuAmount, nuRatio).result
-        await tokenStaking.setLegacyStakingProvider(
-          stakingProvider.address,
-          staker.address,
-          beneficiary.address,
-          authorizer.address
-        )
-        await tokenStaking.addLegacyStake(
-          stakingProvider.address,
-          0,
-          nuInTAmount
-        )
-
-        const authorized = nuInTAmount.div(3)
-        await tokenStaking
-          .connect(authorizer)
-          .forceIncreaseAuthorization(
-            stakingProvider.address,
-            application1Mock.address,
-            authorized
-          )
-
-        await expect(
-          tokenStaking
-            .connect(stakingProvider)
-            .unstakeNu(stakingProvider.address)
-        ).to.be.revertedWith("NU stake still authorized")
-      })
-    })
-
-    context("when amount to unstake is less than not authorized", () => {
-      const tAmount = initialStakerBalance
-      const nuAmount = initialStakerBalance
-      const nuInTAmount = convertToT(nuAmount, nuRatio).result
-      const authorized = tAmount
-      const expectedNuAmount = 0
-      const expectedNuInTAmount = 0
-      const expectedUnstaked = nuInTAmount
-      let tx
-      let blockTimestamp
-
-      beforeEach(async () => {
-        await tokenStaking.connect(deployer).setMinimumStakeAmount(1)
-        await tokenStaking
-          .connect(deployer)
-          .approveApplication(application1Mock.address)
-        await tokenStaking.setLegacyStakingProvider(
-          stakingProvider.address,
-          staker.address,
-          beneficiary.address,
-          authorizer.address
-        )
-        await tokenStaking.addLegacyStake(
-          stakingProvider.address,
-          0,
-          nuInTAmount
-        )
-        blockTimestamp = await lastBlockTime()
-
-        await tokenStaking
-          .connect(staker)
-          .delegateVoting(stakingProvider.address, delegatee.address)
-        await tToken.connect(staker).approve(tokenStaking.address, tAmount)
-        await tokenStaking
-          .connect(staker)
-          .topUp(stakingProvider.address, tAmount)
-
-        await tokenStaking
-          .connect(authorizer)
-          .increaseAuthorization(
-            stakingProvider.address,
-            application1Mock.address,
-            authorized
-          )
-
-        await increaseTime(86400) // +24h
-        tx = await tokenStaking
-          .connect(stakingProvider)
-          .unstakeNu(stakingProvider.address)
-      })
-
-      it("should update Nu staked amount", async () => {
-        await assertStakes(
-          stakingProvider.address,
-          tAmount,
-          Zero,
-          expectedNuInTAmount
-        )
-        expect(await tokenStaking.stakedNu(stakingProvider.address)).to.equal(
-          expectedNuAmount
-        )
-      })
-
-      it("should not update roles", async () => {
-        expect(
-          await tokenStaking.rolesOf(stakingProvider.address)
-        ).to.deep.equal([
-          staker.address,
-          beneficiary.address,
-          authorizer.address,
-        ])
-      })
-
-      it("should start staking timestamp", async () => {
-        expect(
-          await tokenStaking.getStartStakingTimestamp(stakingProvider.address)
-        ).to.equal(blockTimestamp)
-      })
-
-      it("should decrease available amount to authorize", async () => {
-        expect(
-          await tokenStaking.getAvailableToAuthorize(
-            stakingProvider.address,
-            application1Mock.address
-          )
-        ).to.equal(0)
-      })
-
-      it("should update min staked amount", async () => {
-        expect(
-          await tokenStaking.getMinStaked(stakingProvider.address, StakeTypes.T)
-        ).to.equal(tAmount)
-        expect(
-          await tokenStaking.getMinStaked(
-            stakingProvider.address,
-            StakeTypes.NU
-          )
-        ).to.equal(0)
-        expect(
-          await tokenStaking.getMinStaked(
-            stakingProvider.address,
-            StakeTypes.KEEP
-          )
-        ).to.equal(0)
-      })
-
-      it("should emit Unstaked", async () => {
-        await expect(tx)
-          .to.emit(tokenStaking, "Unstaked")
-          .withArgs(stakingProvider.address, expectedUnstaked)
-      })
-
-      it("should decrease the delegatee voting power", async () => {
-        expect(await tokenStaking.getVotes(delegatee.address)).to.equal(tAmount)
-      })
-
-      it("should decrease the total voting power", async () => {
-        const lastBlock = await mineBlocks(1)
-        expect(await tokenStaking.getPastTotalSupply(lastBlock - 1)).to.equal(
-          tAmount
-        )
-      })
-    })
-  })
-
-  describe("unstakeAll", () => {
-    context("when staking provider has no stake", () => {
-      it("should revert", async () => {
-        await expect(
-          tokenStaking.unstakeAll(deployer.address)
-        ).to.be.revertedWith("Not owner or provider")
-      })
-    })
-
-    context("when caller is not owner or staking provider", () => {
-      it("should revert", async () => {
-        await tToken
-          .connect(staker)
-          .approve(tokenStaking.address, initialStakerBalance)
-        await tokenStaking
-          .connect(staker)
-          .stake(
-            stakingProvider.address,
-            beneficiary.address,
-            authorizer.address,
-            initialStakerBalance
-          )
-        await expect(
-          tokenStaking.connect(authorizer).unstakeAll(stakingProvider.address)
-        ).to.be.revertedWith("Not owner or provider")
-      })
-    })
-
-    context("when authorized amount is not zero", () => {
-      it("should revert", async () => {
-        const amount = initialStakerBalance
-        await tokenStaking
-          .connect(deployer)
-          .approveApplication(application1Mock.address)
-        await tToken.connect(staker).approve(tokenStaking.address, amount)
-        await tokenStaking
-          .connect(staker)
-          .stake(
-            stakingProvider.address,
-            beneficiary.address,
-            authorizer.address,
-            amount
-          )
-        const authorized = 1
-        await tokenStaking
-          .connect(authorizer)
-          .increaseAuthorization(
-            stakingProvider.address,
-            application1Mock.address,
-            authorized
-          )
-
-        await expect(
-          tokenStaking
-            .connect(stakingProvider)
-            .unstakeAll(stakingProvider.address)
-        ).to.be.revertedWith("Stake still authorized")
-      })
-    })
-
-    context("when unstake T before minimum staking time passes", () => {
-      it("should revert", async () => {
-        const amount = initialStakerBalance
-        const minAmount = 1
-        await tToken.connect(staker).approve(tokenStaking.address, amount)
-        await tokenStaking
-          .connect(staker)
-          .stake(
-            stakingProvider.address,
-            beneficiary.address,
-            authorizer.address,
-            amount
-          )
-        await tokenStaking.connect(deployer).setMinimumStakeAmount(minAmount)
-
-        await expect(
-          tokenStaking.connect(staker).unstakeAll(stakingProvider.address)
-        ).to.be.revertedWith("Can't unstake earlier than 24h")
-      })
-    })
-
-    context("when unstake Nu before minimum staking time passes", () => {
-      it("should revert", async () => {
-        const nuAmount = initialStakerBalance
-        await tokenStaking.setLegacyStakingProvider(
-          stakingProvider.address,
-          staker.address,
-          beneficiary.address,
-          authorizer.address
-        )
-        await tokenStaking.addLegacyStake(stakingProvider.address, 0, nuAmount)
-
-        await expect(
-          tokenStaking.connect(staker).unstakeAll(stakingProvider.address)
-        ).to.be.revertedWith("Can't unstake earlier than 24h")
-      })
-    })
-
-    context("when unstake Keep before minimum time passes", () => {
-      it("should revert", async () => {
-        const keepAmount = initialStakerBalance
-        await tokenStaking.setLegacyStakingProvider(
-          stakingProvider.address,
-          staker.address,
-          beneficiary.address,
-          authorizer.address
-        )
-        await tokenStaking.addLegacyStake(
-          stakingProvider.address,
-          keepAmount,
-          0
-        )
-
-        await expect(
-          tokenStaking.connect(staker).unstakeAll(stakingProvider.address)
-        ).to.be.revertedWith("Can't unstake earlier than 24h")
-      })
-    })
-
-    const contextUnstakeAll = (preparation, tAmount, nuAmount, keepAmount) => {
-      const nuInTAmount = convertToT(nuAmount, nuRatio).result
-      const keepInTAmount = convertToT(keepAmount, keepRatio).result
-      let tx
-      let blockTimestamp
-
-      beforeEach(async () => {
-        blockTimestamp = await preparation()
-
-        tx = await tokenStaking
-          .connect(stakingProvider)
-          .unstakeAll(stakingProvider.address)
-      })
-
-      it("should update staked amount", async () => {
-        await assertStakes(stakingProvider.address, Zero, Zero, Zero)
-      })
-
-      it("should not update roles", async () => {
-        expect(
-          await tokenStaking.rolesOf(stakingProvider.address)
-        ).to.deep.equal([
-          staker.address,
-          beneficiary.address,
-          authorizer.address,
-        ])
-      })
-
-      it("should not update start staking timestamp", async () => {
-        expect(
-          await tokenStaking.getStartStakingTimestamp(stakingProvider.address)
-        ).to.equal(blockTimestamp)
-      })
-
-      it("should transfer tokens to the staker address", async () => {
-        expect(await tToken.balanceOf(tokenStaking.address)).to.equal(0)
-        expect(await tToken.balanceOf(staker.address)).to.equal(
-          initialStakerBalance
-        )
-      })
-
-      it("should decrease available amount to authorize", async () => {
-        expect(
-          await tokenStaking.getAvailableToAuthorize(
-            stakingProvider.address,
-            application1Mock.address
-          )
-        ).to.equal(0)
-      })
-
-      it("should update min staked amount", async () => {
-        expect(
-          await tokenStaking.getMinStaked(stakingProvider.address, StakeTypes.T)
-        ).to.equal(0)
-        expect(
-          await tokenStaking.getMinStaked(
-            stakingProvider.address,
-            StakeTypes.NU
-          )
-        ).to.equal(0)
-        expect(
-          await tokenStaking.getMinStaked(
-            stakingProvider.address,
-            StakeTypes.KEEP
-          )
-        ).to.equal(0)
-      })
-
-      it("should emit Unstaked", async () => {
-        await expect(tx)
-          .to.emit(tokenStaking, "Unstaked")
-          .withArgs(
-            stakingProvider.address,
-            nuInTAmount.add(keepInTAmount).add(tAmount)
-          )
-      })
-    }
-
-    context(
-      "when unstake after minimum staking time passes for T stake",
-      () => {
-        // subtracting arbitrary values just to keep them different
-        const tAmount = initialStakerBalance.sub(1)
-        const nuAmount = initialStakerBalance.sub(2)
-        const keepAmount = initialStakerBalance.sub(3)
-        const nuInTAmount = convertToT(nuAmount, nuRatio).result
-        const keepInTAmount = convertToT(keepAmount, keepRatio).result
-
-        contextUnstakeAll(
-          async () => {
-            await tokenStaking
-              .connect(deployer)
-              .approveApplication(application1Mock.address)
-            await tokenStaking.connect(deployer).setMinimumStakeAmount(1)
-
-            //
-            // stake T
-            //
-            await tToken.connect(staker).approve(tokenStaking.address, tAmount)
-            await tokenStaking
-              .connect(staker)
-              .stake(
-                stakingProvider.address,
-                beneficiary.address,
-                authorizer.address,
-                tAmount
-              )
-            const blockTimestamp = await lastBlockTime()
-
-            await tokenStaking.addLegacyStake(
-              stakingProvider.address,
-              keepInTAmount,
-              nuInTAmount
-            )
-
-            await increaseTime(86400) // +24h
-            return blockTimestamp
-          },
-          tAmount,
-          nuAmount,
-          keepAmount
-        )
-      }
-    )
-
-    context(
-      "when unstake after minimum staking time passes for NU and KEEP stake",
-      () => {
-        // subtracting arbitrary values just to keep them different
-        const tAmount = initialStakerBalance.sub(3)
-        const nuAmount = initialStakerBalance.sub(1)
-        const keepAmount = initialStakerBalance.sub(2)
-        const nuInTAmount = convertToT(nuAmount, nuRatio).result
-        const keepInTAmount = convertToT(keepAmount, keepRatio).result
-
-        contextUnstakeAll(
-          async () => {
-            await tokenStaking
-              .connect(deployer)
-              .approveApplication(application1Mock.address)
-            await tokenStaking.connect(deployer).setMinimumStakeAmount(1)
+      })
 
-            //
-            // legacy stake NU and KEEP
-            //
-            await tokenStaking.setLegacyStakingProvider(
-              stakingProvider.address,
-              staker.address,
-              beneficiary.address,
-              authorizer.address
-            )
-            await tokenStaking.addLegacyStake(
-              stakingProvider.address,
-              keepInTAmount,
-              nuInTAmount
-            )
-            const blockTimestamp = await lastBlockTime()
+      it("should not update start staking timestamp", async () => {
+        expect(
+          await tokenStaking.getStartStakingTimestamp(stakingProvider.address)
+        ).to.equal(blockTimestamp)
+      })
 
-            //
-            // top-up T
-            //
-            await tToken.connect(staker).approve(tokenStaking.address, tAmount)
-            await tokenStaking
-              .connect(staker)
-              .topUp(stakingProvider.address, tAmount)
-
-            await increaseTime(86400) // +24h
-            return blockTimestamp
-          },
-          tAmount,
-          nuAmount,
-          keepAmount
-        )
-      }
-    )
+      it("should transfer tokens to the staker address", async () => {
+        expect(await tToken.balanceOf(tokenStaking.address)).to.equal(0)
+        expect(await tToken.balanceOf(staker.address)).to.equal(amount)
+      })
+
+      it("should emit Unstaked", async () => {
+        await expect(tx)
+          .to.emit(tokenStaking, "Unstaked")
+          .withArgs(stakingProvider.address, amount)
+      })
+    })
   })
 
   describe("setNotificationReward", () => {
@@ -4336,12 +3027,7 @@ describe("TokenStaking", () => {
         })
 
         it("should update staked amount", async () => {
-          await assertStakes(
-            stakingProvider.address,
-            expectedAmount,
-            Zero,
-            Zero
-          )
+          await assertStake(stakingProvider.address, expectedAmount)
         })
 
         it("should decrease the delegatee voting power", async () => {
@@ -4462,7 +3148,7 @@ describe("TokenStaking", () => {
         })
 
         it("should update staked amount", async () => {
-          await assertStakes(otherStaker.address, Zero, Zero, Zero)
+          await assertStake(otherStaker.address, Zero)
         })
 
         it("should update index of queue", async () => {
@@ -4587,12 +3273,12 @@ describe("TokenStaking", () => {
           await increaseTime(86400) // +24h
           await tokenStaking
             .connect(stakingProvider)
-            .unstakeAll(stakingProvider.address)
+            .unstakeT(stakingProvider.address, tAmount)
           tx = await tokenStaking.connect(auxiliaryAccount).processSlashing(1)
         })
 
         it("should not update staked amount", async () => {
-          await assertStakes(stakingProvider.address, Zero, Zero, Zero)
+          await assertStake(stakingProvider.address, Zero)
         })
 
         it("should update index of queue", async () => {
@@ -4723,10 +3409,7 @@ describe("TokenStaking", () => {
       const ExtendedTokenStaking = await ethers.getContractFactory(
         "ExtendedTokenStaking"
       )
-      extendedTokenStaking = await ExtendedTokenStaking.deploy(
-        tToken.address,
-        nucypherVendingMachine.address
-      )
+      extendedTokenStaking = await ExtendedTokenStaking.deploy(tToken.address)
       await extendedTokenStaking.deployed()
     })
 
@@ -4843,324 +3526,10 @@ describe("TokenStaking", () => {
     )
   })
 
-  describe("forceUnstakeLegacy", () => {
-    const tAmount = initialStakerBalance
-    const keepInTStake = convertToT(initialStakerBalance, keepRatio).result
-    const nuInTStake = convertToT(initialStakerBalance, nuRatio).result
-
-    beforeEach(async () => {
-      await tokenStaking
-        .connect(deployer)
-        .approveApplication(application1Mock.address)
-      await tokenStaking
-        .connect(deployer)
-        .approveApplication(application2Mock.address)
-      await tToken
-        .connect(staker)
-        .approve(tokenStaking.address, initialStakerBalance)
-      await tokenStaking
-        .connect(staker)
-        .stake(stakingProvider.address, staker.address, staker.address, tAmount)
-    })
-
-    context("when no legacy stake", () => {
-      it("should revert", async () => {
-        await tokenStaking
-          .connect(staker)
-          .increaseAuthorization(
-            stakingProvider.address,
-            application1Mock.address,
-            tAmount
-          )
-        await expect(
-          tokenStaking["forceUnstakeLegacy(address)"](stakingProvider.address)
-        ).to.be.revertedWith("No legacy stake")
-      })
-    })
-
-    context("when authorized only T stake", () => {
-      let tx
-
-      beforeEach(async () => {
-        await tokenStaking.addLegacyStake(
-          stakingProvider.address,
-          keepInTStake,
-          nuInTStake
-        )
-        await tokenStaking
-          .connect(staker)
-          .increaseAuthorization(
-            stakingProvider.address,
-            application1Mock.address,
-            tAmount
-          )
-        await tokenStaking
-          .connect(staker)
-          .delegateVoting(stakingProvider.address, delegatee.address)
-
-        tx = await tokenStaking["forceUnstakeLegacy(address)"](
-          stakingProvider.address
-        )
-      })
-
-      it("should update staked amount", async () => {
-        await assertStakes(stakingProvider.address, tAmount, Zero, Zero)
-      })
-
-      it("should decrease the delegatee voting power", async () => {
-        expect(await tokenStaking.getVotes(delegatee.address)).to.equal(tAmount)
-      })
-
-      it("should not decrease authorized amounts", async () => {
-        expect(
-          await tokenStaking.authorizedStake(
-            stakingProvider.address,
-            application1Mock.address
-          )
-        ).to.equal(tAmount)
-      })
-
-      it("should not inform application", async () => {
-        await assertApplicationStakingProviders(
-          application1Mock,
-          stakingProvider.address,
-          tAmount,
-          Zero
-        )
-      })
-
-      it("should emit Unstaked event", async () => {
-        await expect(tx)
-          .to.emit(tokenStaking, "Unstaked")
-          .withArgs(stakingProvider.address, nuInTStake.add(keepInTStake))
-      })
-    })
-
-    context("when authorized T, KEEP and NU stakes", () => {
-      const authorized1 = tAmount.add(keepInTStake).add(nuInTStake)
-      const authorized2 = nuInTStake.add(keepInTStake)
-      const deauth = authorized1.sub(tAmount).sub(1)
-      let tx
-
-      beforeEach(async () => {
-        await tokenStaking.addLegacyStake(
-          stakingProvider.address,
-          keepInTStake,
-          nuInTStake
-        )
-        await tokenStaking
-          .connect(staker)
-          .forceIncreaseAuthorization(
-            stakingProvider.address,
-            application1Mock.address,
-            authorized1
-          )
-        await tokenStaking
-          .connect(staker)
-          .forceIncreaseAuthorization(
-            stakingProvider.address,
-            application2Mock.address,
-            authorized2
-          )
-        await tokenStaking
-          .connect(staker)
-          ["requestAuthorizationDecrease(address,address,uint96)"](
-            stakingProvider.address,
-            application1Mock.address,
-            deauth
-          )
-        await tokenStaking
-          .connect(staker)
-          .delegateVoting(stakingProvider.address, delegatee.address)
-
-        tx = await tokenStaking["forceUnstakeLegacy(address)"](
-          stakingProvider.address
-        )
-      })
-
-      it("should update staked amount", async () => {
-        await assertStakes(stakingProvider.address, tAmount, Zero, Zero)
-      })
-
-      it("should decrease the delegatee voting power", async () => {
-        expect(await tokenStaking.getVotes(delegatee.address)).to.equal(tAmount)
-      })
-
-      it("should decrease authorized amounts", async () => {
-        expect(
-          await tokenStaking.authorizedStake(
-            stakingProvider.address,
-            application1Mock.address
-          )
-        ).to.equal(tAmount)
-        expect(
-          await tokenStaking.authorizedStake(
-            stakingProvider.address,
-            application2Mock.address
-          )
-        ).to.equal(tAmount)
-      })
-
-      it("should inform application", async () => {
-        await assertApplicationStakingProviders(
-          application1Mock,
-          stakingProvider.address,
-          tAmount,
-          Zero
-        )
-        await assertApplicationStakingProviders(
-          application2Mock,
-          stakingProvider.address,
-          tAmount,
-          Zero
-        )
-      })
-
-      it("should emit Unstaked and AuthorizationInvoluntaryDecreased event", async () => {
-        await expect(tx)
-          .to.emit(tokenStaking, "Unstaked")
-          .withArgs(stakingProvider.address, nuInTStake.add(keepInTStake))
-        await expect(tx)
-          .to.emit(tokenStaking, "AuthorizationInvoluntaryDecreased")
-          .withArgs(
-            stakingProvider.address,
-            application1Mock.address,
-            authorized1,
-            tAmount,
-            true
-          )
-        await expect(tx)
-          .to.emit(tokenStaking, "AuthorizationInvoluntaryDecreased")
-          .withArgs(
-            stakingProvider.address,
-            application2Mock.address,
-            authorized2,
-            tAmount,
-            true
-          )
-      })
-    })
-
-    context("when unstake multiple legacy stakes", () => {
-      let tx
-
-      beforeEach(async () => {
-        await tokenStaking.addLegacyStake(
-          stakingProvider.address,
-          keepInTStake,
-          0
-        )
-        await tokenStaking.setLegacyStakingProvider(
-          stakingProvider.address,
-          staker.address,
-          beneficiary.address,
-          authorizer.address
-        )
-        await tokenStaking.addLegacyStake(otherStaker.address, 0, nuInTStake)
-
-        await tokenStaking
-          .connect(staker)
-          .forceIncreaseAuthorization(
-            stakingProvider.address,
-            application1Mock.address,
-            tAmount.add(keepInTStake)
-          )
-        await tokenStaking
-          .connect(staker)
-          .forceIncreaseAuthorization(
-            otherStaker.address,
-            application1Mock.address,
-            nuInTStake
-          )
-
-        tx = await tokenStaking["forceUnstakeLegacy(address[])"]([
-          stakingProvider.address,
-          otherStaker.address,
-        ])
-      })
-
-      it("should update staked amount", async () => {
-        await assertStakes(stakingProvider.address, tAmount, Zero, Zero)
-        await assertStakes(otherStaker.address, Zero, Zero, Zero)
-      })
-
-      it("should decrease authorized amounts", async () => {
-        expect(
-          await tokenStaking.authorizedStake(
-            stakingProvider.address,
-            application1Mock.address
-          )
-        ).to.equal(tAmount)
-        expect(
-          await tokenStaking.authorizedStake(
-            otherStaker.address,
-            application1Mock.address
-          )
-        ).to.equal(Zero)
-      })
-
-      it("should inform application", async () => {
-        await assertApplicationStakingProviders(
-          application1Mock,
-          stakingProvider.address,
-          tAmount,
-          Zero
-        )
-        await assertApplicationStakingProviders(
-          application1Mock,
-          otherStaker.address,
-          Zero,
-          Zero
-        )
-      })
-
-      it("should emit Unstaked and AuthorizationInvoluntaryDecreased event", async () => {
-        await expect(tx)
-          .to.emit(tokenStaking, "Unstaked")
-          .withArgs(stakingProvider.address, keepInTStake)
-        await expect(tx)
-          .to.emit(tokenStaking, "Unstaked")
-          .withArgs(otherStaker.address, nuInTStake)
-        await expect(tx)
-          .to.emit(tokenStaking, "AuthorizationInvoluntaryDecreased")
-          .withArgs(
-            stakingProvider.address,
-            application1Mock.address,
-            tAmount.add(keepInTStake),
-            tAmount,
-            true
-          )
-        await expect(tx)
-          .to.emit(tokenStaking, "AuthorizationInvoluntaryDecreased")
-          .withArgs(
-            otherStaker.address,
-            application1Mock.address,
-            nuInTStake,
-            Zero,
-            true
-          )
-      })
-    })
-  })
-
-  async function assertStakes(
-    address,
-    expectedTStake,
-    expectedKeepInTStake,
-    expectedNuInTStake
-  ) {
-    expect(
-      (await tokenStaking.stakes(address)).tStake,
-      "invalid tStake"
-    ).to.equal(expectedTStake)
-    expect(
-      (await tokenStaking.stakes(address)).keepInTStake,
-      "invalid keepInTStake"
-    ).to.equal(expectedKeepInTStake)
-    expect(
-      (await tokenStaking.stakes(address)).nuInTStake,
-      "invalid nuInTStake"
-    ).to.equal(expectedNuInTStake)
+  async function assertStake(address, expectedTStake) {
+    expect(await tokenStaking.stakeAmount(address), "invalid tStake").to.equal(
+      expectedTStake
+    )
   }
 
   async function assertApplicationStakingProviders(
diff --git a/yarn.lock b/yarn.lock
index 0f302329..e488deef 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1269,14 +1269,6 @@
   resolved "https://registry.yarnpkg.com/@keep-network/hardhat-helpers/-/hardhat-helpers-0.6.0-pre.8.tgz#6e0722889a0132dabed5182fb32f6424ff4a77d0"
   integrity sha512-51oLHceBubutBYxfVk2pLjgyhvpcDC1ahKM3V9lOiTa9lbWyY18Dza7rnM9V04kq+8DbweQRM0M9/f+K26nl9g==
 
-"@keep-network/keep-core@>1.8.1-dev <1.8.1-goerli":
-  version "1.8.1-dev.0"
-  resolved "https://registry.yarnpkg.com/@keep-network/keep-core/-/keep-core-1.8.1-dev.0.tgz#d95864b25800214de43d8840376a68336cb12055"
-  integrity sha512-gFXkgN4PYOYCZ14AskL7fZHEFW5mu3BDd+TJKBuKZc1q9CgRMOK+dxpJnSctxmSH1tV+Ln9v9yqlSkfPCoiBHw==
-  dependencies:
-    "@openzeppelin/upgrades" "^2.7.2"
-    openzeppelin-solidity "2.4.0"
-
 "@keep-network/prettier-config-keep@github:keep-network/prettier-config-keep":
   version "0.0.1"
   resolved "https://codeload.github.com/keep-network/prettier-config-keep/tar.gz/a1a333e7ac49928a0f6ed39421906dd1e46ab0f3"