class_docstr: Default `TrainingFileImporter` implementation.
class_docstr_tok: ["Default","`","TrainingFileImporter","`","implementation","."]
docstr: Returns config file path for auto-config only if there is a single one.
docstr_tok: ["Returns","config","file","path","for","auto-config","only","if","there","is","a","single","one","."]
code: def get_config_file_for_auto_config(self) -> Optional[Text]:
      """Returns config file path for auto-config only if there is a single one."""
      return self.config_file
  
imports: import logging
  import os
  from typing import Dict, List, Optional, Text, Union
  import rasa.shared.data
  import rasa.shared.utils.common
  import rasa.shared.utils.io
  from rasa.shared.core.training_data.structures import StoryGraph
  from rasa.shared.importers import utils
  from rasa.shared.importers.importer import TrainingDataImporter
  from rasa.shared.nlu.training_data.training_data import TrainingData
  from rasa.shared.core.domain import InvalidDomain, Domain
  from rasa.shared.core.training_data.story_reader.yaml_story_reader import YAMLStoryReader
label_desc: Use image node_id 3 for calling the RasaFileImporter obj's underlying member method code with example usage: obj.get_config_file_for_auto_config() and returns: self