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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def main():
 """Task run method."""

    # Install handler to respond to SIGTERM
    signal.signal(signal.SIGTERM, _sig_handler)

    with open(sys.argv[1]) as fh:
        config = json.load(fh)

    # Starts the pulsar search ftp server
    os.chdir(os.path.expanduser('~'))
    receiver = PulsarStart(config, logging.getLogger())
    receiver.run()