def writeHeader(self):
        """
        This is the start of the code that calls _arguments
        @return: L{None}
        """
        self.file.write(b'#compdef ' + self.cmdName.encode('utf-8') +
                        b'\n\n'
                        b'_arguments -s -A "-*" \\\n')

        This is the start of the code that calls _arguments
        @return: L{None}
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/python/_shellcomp.py