code: def testProvideNamedClass(self):
      class Foo:
          pass
  
      class SubFoo(Foo):
          pass
  
      mod = module.DependencyModule()
      mod.provide_named_class("foo", Foo)
      mod.provide_class(SubFoo)
  
      self.assertIsInstance(mod.get("foo", Foo), Foo)
      self.assertIsInstance(mod.get("bar", Foo), SubFoo)
      self.assertIsInstance(mod.get("bar", SubFoo), SubFoo)
  
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 17 for calling the ModuleTest obj's underlying member method code with example usage: obj.testProvideNamedClass() without return types