code: def _init_from_file(self, path: Text) -> None:
      path = os.path.abspath(path)
      if os.path.exists(path) and rasa.shared.data.is_config_file(path):
          config = rasa.shared.utils.io.read_config_file(path)
  
          parent_directory = os.path.dirname(path)
          self._init_from_dict(config, parent_directory)
      else:
          rasa.shared.utils.io.raise_warning(
              f"'{path}' does not exist or is not a valid config file."
          )
  
imports: import logging
  from functools import reduce
  from typing import Text, Set, Dict, Optional, List, Union, Any
  import os
  import rasa.shared.data
  import rasa.shared.utils.io
  from rasa.shared.core.domain import Domain
  from rasa.shared.importers.importer import TrainingDataImporter
  from rasa.shared.importers import utils
  from rasa.shared.nlu.training_data.training_data import TrainingData
  from rasa.shared.core.training_data.structures import StoryGraph
  from rasa.shared.utils.common import mark_as_experimental_feature
  from rasa.shared.core.training_data.story_reader.yaml_story_reader import YAMLStoryReader
label_desc: Use image node_id 4 for calling the MultiProjectImporter obj's underlying member method code with example usage: obj._init_from_file(path) without return types