code: def testProvideClass_CompositeType(self):
      class Foo:
          pass
  
      mod = module.DependencyModule()
      mod.provide_class(Foo)
  
      # self.assertIsInstance(mod.get(ANY_NAME, Foo | None), Foo)
      self.assertIsInstance(mod.get(ANY_NAME, Optional[Foo]), Foo)
      # self.assertIsInstance(mod.get(ANY_NAME, Foo | int), Foo)
      self.assertIsInstance(mod.get(ANY_NAME, Union[Foo, int]), Foo)
  
imports: import dataclasses
  from typing import Optional, Union
  import tensorflow
  from tfx.utils.di import errors
  from tfx.utils.di import module
label_desc: Use image node_id 15 for calling the ModuleTest obj's underlying member method code with example usage: obj.testProvideClass_CompositeType() without return types