{
    "Function": "decreaseAllowance",
    "File": "src/token/ERC20.sol",
    "Parent Contracts": [
        "src/util/Context.sol"
    ],
    "High-Level Calls": [],
    "Internal Calls": [
        "_msgSender",
        "_msgSender",
        "_msgSender",
        "require(bool,string)"
    ],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "function decreaseAllowance(address spender, uint256 subtractedValue) external returns (bool) {\n        uint256 allowed = allowance[_msgSender()][spender];\n        require(allowed >= subtractedValue, \"ERC20/insufficient-allowance\");\n        unchecked {\n            allowed = allowed - subtractedValue;\n        }\n        allowance[_msgSender()][spender] = allowed;\n\n        emit Approval(_msgSender(), spender, allowed);\n\n        return true;\n    }"
}