ITransferValidator.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

interface ITransferValidator {
    function applyCollectionTransferPolicy(address caller, address from, address to) external view;
    function validateTransfer(address caller, address from, address to) external view;
    function validateTransfer(address caller, address from, address to, uint256 tokenId) external view;
    function validateTransfer(address caller, address from, address to, uint256 tokenId, uint256 amount) external;

    function beforeAuthorizedTransfer(address operator, address token, uint256 tokenId) external;
    function afterAuthorizedTransfer(address token, uint256 tokenId) external;
    function beforeAuthorizedTransfer(address operator, address token) external;
    function afterAuthorizedTransfer(address token) external;
    function beforeAuthorizedTransfer(address token, uint256 tokenId) external;
    function beforeAuthorizedTransferWithAmount(address token, uint256 tokenId, uint256 amount) external;
    function afterAuthorizedTransferWithAmount(address token, uint256 tokenId) external;
}