code: def read_args(**kwargs):
      
      if kwargs.get("control"):
          args = Namespace(control=kwargs["control"])
      elif config.CONTROLFILE:
          args = Namespace(control=config.CONTROLFILE)
      elif config.DB.get("control_table_name"):
          args = Namespace(control="sql")
      elif config.AWS.get("control_table_name"):
          args = Namespace(control="dynamodb")
      else:
          # read cli args
          parser = argparse.ArgumentParser()
          parser.add_argument("--control", required=True, help="Control file, can be path.")
          args = parser.parse_args()
      return args
docs: Read controlfile parameter.