code: def from_json(json_str):
      data = json.loads(json_str)
      return Loader.from_dict(data)
  
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 9 for calling the Loader obj's underlying member method code with example usage: obj.from_json(json_str) and returns: Loader