code: def setUp(self):
      super().setUp()
      self.reg = self.enter_context(dsl_context_registry.new_registry())
  
imports: from typing import Dict, Any
  import tensorflow
  from tfx.dsl.components.base import base_node
  from tfx.dsl.context_managers import dsl_context
  from tfx.dsl.context_managers import dsl_context_manager
  from tfx.dsl.context_managers import dsl_context_registry
  from tfx.utils import test_case_utils
label_desc: Use image node_id 1 for calling the ContextManagerTest obj's underlying member method code with example usage: obj.setUp() without return types