code: def test_load_optimizer_without_keras(self):
      # Make sure that a SavedModel w/ optimizer can be loaded without the Keras
      # module imported.
      save_path = test.test_src_dir_path(
          "cc/saved_model/testdata/OptimizerSlotVariableModule"
      )
      loaded = load.load(save_path)
      self.assertIsInstance(
          loaded.opt.get_slot(loaded.v, "v"), variables.Variable
      )
  
imports: from tensorflow.python.eager import test
  from tensorflow.python.ops import variables
  from tensorflow.python.saved_model import load
label_desc: Use image node_id 1 for calling the LoadOptimizerTest obj's underlying member method code with example usage: obj.test_load_optimizer_without_keras() without return types