docs: async def run_executor():
      """Start the actual execution; instantiate the executor and run."""
      parser = argparse.ArgumentParser(description="Run the specified executor.")
      parser.add_argument('module', help="The module from which to instantiate the concrete executor.")
      args = parser.parse_args()
  
      module_name = '{}.run'.format(args.module)
      class_name = 'FlowExecutor'
  
      module = import_module(module_name, __package__)
      executor = getattr(module, class_name)()
      with open(ExecutorFiles.PROCESS_SCRIPT, 'rt') as script_file:
          await executor.run(DATA['id'], script_file.read())