class_docstr: A class that is not hashable.
code: def __reduce__(self):
      raise NotImplementedError
  
imports: import threading
  import types
  from unittest.mock import Mock, patch
  from parameterized import parameterized
  import streamlit
  from streamlit.elements import exception
  from streamlit.proto.Exception_pb2 import Exception
  from streamlit.runtime.legacy_caching import caching, hashing
  from tests import testutil
  from tests.delta_generator_test_case import DeltaGeneratorTestCase
label_desc: Use image node_id 1 for calling the NotHashable obj's underlying member method code with example usage: obj.__reduce__() without return types