code: def test_args(self, exception):
      called = [False]
  
      @st.cache
      def f(x):
          called[0] = True
          return x
  
      self.assertFalse(called[0])
      f(0)
  
      self.assertTrue(called[0])
  
      called = [False]  # Reset called
  
      f(0)
      self.assertFalse(called[0])
  
      f(1)
      self.assertTrue(called[0])
  
      exception.assert_not_called()
  
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 4 for calling the CacheTest obj's underlying member method code with example usage: obj.test_args(exception) and returns: x