code: def test_json(self):
      data_dict1 = {"b": "str2", "a": "str1"}
      data_dict2 = {"a": "str1", "b": "str2"}
  
      h1 = json_hashing(data_dict1)
      h2 = json_hashing(data_dict2)
      self.assertEqual(h1, h2)
  
file_path: MONAI/tests/test_hashing.py
imports: from __future__ import annotations
  import unittest
  import numpy
  from monai.data import json_hashing, pickle_hashing
  from monai.utils import set_determinism
label_desc: Use image node_id 1 for calling the TestJSONHashing obj's underlying member method code with example usage: obj.test_json() without return types