@property
    def fileno(self):
        if not self._io.socket:
            return None
        return self._io.socket.fileno()
Test the creation of a simple XlsxWriter file.
dataset/ETHPy150Open eandersson/amqpstorm/amqpstorm/connection.py/Connection.fileno--crossover with--dataset/ETHPy150Open jmcnamara/XlsxWriter/xlsxwriter/test/comparison/test_chart_pattern05.py/TestCompareXLSXFiles.test_create_file