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1. TPU-Sentiment-Analysis TPU-Sentiment-Analysis Public

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2. Enabling the safe swapping of differ... Enabling the safe swapping of different NFTs between users. Requires setApprovalForAll to be ran on involved Token Contracts

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   // SPDX-License-Identifier: MIT

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   pragma solidity ^0.8.0;

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   import "@openzeppelin/contracts/token/ERC721/IERC721.sol";

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   import "@openzeppelin/contracts/security/ReentrancyGuard.sol";