{
    "Function": "transferFrom",
    "File": "contracts/mock/MockERC20.sol",
    "Parent Contracts": [],
    "High-Level Calls": [],
    "Internal Calls": [
        "sub",
        "_move",
        "require(bool,string)"
    ],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "function transferFrom(address src, address dst, uint amt) external returns (bool) {\n        require(msg.sender == src || amt <= _allowance[src][msg.sender], \"!spender\");\n        _move(src, dst, amt);\n        if (msg.sender != src && _allowance[src][msg.sender] != uint256(- 1)) {\n            _allowance[src][msg.sender] = sub(_allowance[src][msg.sender], amt);\n            emit Approval(msg.sender, dst, _allowance[src][msg.sender]);\n        }\n        return true;\n    }"
}