code: def test_yaml_writer_stories_to_yaml(domain: Domain):
      reader = YAMLStoryReader(domain, None)
      writer = YAMLStoryWriter()
      steps = reader.read_from_file(
          "data/test_yaml_stories/simple_story_with_only_end.yml"
      )
  
      result = writer.stories_to_yaml(steps)
      assert isinstance(result, OrderedDict)
      assert "stories" in result
      assert len(result["stories"]) == 1
  
imports: from pathlib import Path
  import textwrap
  from typing import Text
  from collections import OrderedDict
  import pytest
  from rasa.shared.constants import LATEST_TRAINING_DATA_FORMAT_VERSION
  from rasa.shared.core.constants import ACTION_SESSION_START_NAME, ACTION_LISTEN_NAME, ACTION_UNLIKELY_INTENT_NAME
  from rasa.shared.core.domain import Domain
  from rasa.shared.core.events import ActionExecuted, UserUttered, DefinePrevUserUtteredFeaturization
  from rasa.shared.core.trackers import DialogueStateTracker
  from rasa.shared.core.training_data.story_reader.yaml_story_reader import YAMLStoryReader
  from rasa.shared.core.training_data.story_writer.yaml_story_writer import YAMLStoryWriter
  from rasa.shared.core.training_data.structures import STORY_START
label_desc: Use image node_id 5 for calling a global function with example usage: test_yaml_writer_stories_to_yaml(domain) without return types