{
    "Function": "safeDecreaseAllowance",
    "File": "contracts/src/vendor/openzeppelin-solidity/v4.8.3/contracts/token/ERC20/utils/SafeERC20.sol",
    "Parent Contracts": [],
    "High-Level Calls": [
        "IERC20"
    ],
    "Internal Calls": [
        "require(bool,string)",
        "abi.encodeWithSelector()",
        "_callOptionalReturn"
    ],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n    unchecked {\n      uint256 oldAllowance = token.allowance(address(this), spender);\n      require(oldAllowance >= value, \"SafeERC20: decreased allowance below zero\");\n      uint256 newAllowance = oldAllowance - value;\n      _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n    }\n  }"
}