{
    "Function": "_burn",
    "File": "contracts/openzeppelin-solidity/contracts/token/ERC777/ERC777.sol",
    "Parent Contracts": [
        "contracts/openzeppelin-solidity/contracts/token/ERC20/IERC20.sol",
        "contracts/openzeppelin-solidity/contracts/token/ERC777/IERC777.sol",
        "contracts/openzeppelin-solidity/contracts/utils/Context.sol"
    ],
    "High-Level Calls": [],
    "Internal Calls": [
        "require(bool,string)",
        "_beforeTokenTransfer",
        "_callTokensToSend",
        "_msgSender",
        "require(bool,string)"
    ],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "function _burn(\n        address from,\n        uint256 amount,\n        bytes memory data,\n        bytes memory operatorData\n    ) internal virtual {\n        require(from != address(0), \"ERC777: burn from the zero address\");\n\n        address operator = _msgSender();\n\n        _callTokensToSend(operator, from, address(0), amount, data, operatorData);\n\n        _beforeTokenTransfer(operator, from, address(0), amount);\n\n        // Update state variables\n        uint256 fromBalance = _balances[from];\n        require(fromBalance >= amount, \"ERC777: burn amount exceeds balance\");\n        unchecked {\n            _balances[from] = fromBalance - amount;\n        }\n        _totalSupply -= amount;\n\n        emit Burned(operator, from, amount, data, operatorData);\n        emit Transfer(from, address(0), amount);\n    }"
}