code: def test_load_graph(self, builder_cls):
      self.export_simple_graph(builder_cls)
      loader = loader_impl.SavedModelLoader(SIMPLE_ADD_SAVED_MODEL)
      graph = ops.Graph()
      loader.load_graph(graph, ["foo_graph"])
  
      x = graph.get_tensor_by_name(_tensor_name("x"))
      y = graph.get_tensor_by_name(_tensor_name("y"))
  
      with self.assertRaises(KeyError):
          graph.get_tensor_by_name(_tensor_name("z"))
  
      with graph.as_default(), self.session():
          # Check that x and y are not initialized
          with self.assertRaises(errors.FailedPreconditionError):
              self.evaluate(x)
          with self.assertRaises(errors.FailedPreconditionError):
              self.evaluate(y)
  
imports: import os
  import shutil
  from absl.testing import parameterized
  from tensorflow.python.client import session
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import ops
  from tensorflow.python.ops import control_flow_ops
  from tensorflow.python.ops import resource_variables_toggle
  from tensorflow.python.ops import state_ops
  from tensorflow.python.ops import variable_v1
  from tensorflow.python.ops import variables
  from tensorflow.python.platform import test
  from tensorflow.python.saved_model import builder
  from tensorflow.python.saved_model import loader_impl
  from tensorflow.python.saved_model import signature_def_utils
  from tensorflow.python.saved_model import utils
  from tensorflow.python.training import saver
label_desc: Use image node_id 5 for calling the SavedModelLoaderTest obj's underlying member method code with example usage: obj.test_load_graph(builder_cls) without return types