code: def __init__(self, module_name, item_name, source=None):
      pass
  
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 AbstractLoader object from inherited base classes: ABC with example: obj = AbstractLoader(module_name, item_name, source)