{
    "Function": "_transfer",
    "File": "contracts/test/ERC20.sol",
    "Parent Contracts": [
        "contracts/test/IERC20Metadata.sol",
        "contracts/util/IERC20.sol",
        "contracts/util/Context.sol"
    ],
    "High-Level Calls": [],
    "Internal Calls": [
        "_afterTokenTransfer",
        "require(bool,string)",
        "require(bool,string)",
        "require(bool,string)",
        "_beforeTokenTransfer"
    ],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "function _transfer(\n        address sender,\n        address recipient,\n        uint256 amount\n    ) internal virtual {\n        require(sender != address(0), \"ERC20: transfer from the zero address\");\n        require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n        _beforeTokenTransfer(sender, recipient, amount);\n\n        uint256 senderBalance = _balances[sender];\n        require(senderBalance >= amount, \"ERC20: transfer amount exceeds balance\");\n        unchecked {\n            _balances[sender] = senderBalance - amount;\n        }\n        _balances[recipient] += amount;\n\n        emit Transfer(sender, recipient, amount);\n\n        _afterTokenTransfer(sender, recipient, amount);\n    }"
}