code: def __init__(self, module_name, item_name, source=None, **kwargs):
      if source is None:
          # add prefix for moduele loader
          module_name = f"{_Source.MODEL_ZOO}.{module_name}"
      super(ModelLoader, self).__init__(
          module_name, item_name, source, **kwargs
      )
  
imports: import os
  import sys
  import importlib.util
  from abc import ABC, abstractmethod
  import json
  import yaml
  import difflib
label_desc: Use image node_id 1 to create a new ModelLoader object from inherited base classes: Loader with example: obj = ModelLoader(module_name, item_name, source)