code: def main():
      
      # Setup an initial logging handler that buffers log messages before
      # applying the final logging configuration.
      initial_handler = logging.handlers.MemoryHandler(100)
      root_logger = logging.getLogger()
      root_logger.addHandler(initial_handler)
  
      # Parse configuration and setup logging.
      conf = config.Config(get_config_options())
      conf.parse_args()
      setup_logging(conf)
  
      # Flush the buffered log messages to the final logging handler.
      initial_handler.setTarget(root_logger.handlers[-1])
      initial_handler.flush()
      root_logger.removeHandler(initial_handler)
  
      log_startup_info()
  
      connector = Connector.from_config(conf)
  
      # Catch SIGTERM and SIGINT to cleanup the connector gracefully
      def signame_handler(signal_name):
          def sig_handler(signum, frame):
              # Save the signal so it can be printed later
              connector.signal = (signal_name, signum)
              connector.can_run = False
  
          return sig_handler
  
      signal.signal(signal.SIGTERM, signame_handler("SIGTERM"))
      signal.signal(signal.SIGINT, signame_handler("SIGINT"))
  
      connector.start()
  
      while True:
          if not connector.is_alive():
              break
          time.sleep(3)
docs: Starts the mongo connector (assuming CLI)