{
    "Function": "_collectFees",
    "File": "src/transformers/V3Utils.sol",
    "Parent Contracts": [
        "lib/openzeppelin-contracts/contracts/token/ERC721/IERC721Receiver.sol",
        "src/utils/Swapper.sol",
        "src/interfaces/IErrors.sol",
        "lib/v3-core/contracts/interfaces/callback/IUniswapV3SwapCallback.sol"
    ],
    "High-Level Calls": [
        "IERC20",
        "IERC20",
        "INonfungiblePositionManager",
        "IERC20",
        "IERC20"
    ],
    "Internal Calls": [
        "revert CollectError()",
        "revert CollectError()"
    ],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "function _collectFees(uint256 tokenId, IERC20 token0, IERC20 token1, uint128 collectAmount0, uint128 collectAmount1)\n        internal\n        returns (uint256 amount0, uint256 amount1)\n    {\n        uint256 balanceBefore0 = token0.balanceOf(address(this));\n        uint256 balanceBefore1 = token1.balanceOf(address(this));\n        (amount0, amount1) = nonfungiblePositionManager.collect(\n            INonfungiblePositionManager.CollectParams(tokenId, address(this), collectAmount0, collectAmount1)\n        );\n        uint256 balanceAfter0 = token0.balanceOf(address(this));\n        uint256 balanceAfter1 = token1.balanceOf(address(this));\n\n        // reverts for fee-on-transfer tokens\n        if (balanceAfter0 - balanceBefore0 != amount0) {\n            revert CollectError();\n        }\n        if (balanceAfter1 - balanceBefore1 != amount1) {\n            revert CollectError();\n        }\n    }"
}