```\\nfunction isContract(address account) internal view returns (bool) {\\n    // This method relies on extcodesize, which returns 0 for contracts in\\n    // construction, since the code is only stored at the end of the\\n    // constructor execution.\\n\\n    uint256 size;\\n    assembly {\\n        size := extcodesize(account)\\n    }\\n    return size > 0;\\n}\\n```\\n