def main():
    """
    Handle command line arguments to convert a file to a JSON stream as a
    script.
    """
    logging.basicConfig(level=logging.INFO)
    import argparse
    parser = argparse.ArgumentParser(
        description="Translate CSV or JSON input to a JSON stream, or verify "
                    "something that is already a JSON stream."
    )
    parser.add_argument('input',
        help='A CSV, JSON, or JSON stream file to read.')
    parser.add_argument('output', nargs='?', default=None,
        help="The filename to output to. Recommended extension is .jsons. "
             "If omitted, use standard output.")
    args = parser.parse_args()
    transcode(args.input, args.output)
Handle command line arguments to convert a file to a JSON stream as a
    script.