code: def testShapeChangingIsolateState(self):
      server = self._cached_server
      sharing_config = config_pb2.ConfigProto(
          isolate_session_state=False
      )
      isolate_config = config_pb2.ConfigProto(
          isolate_session_state=True
      )
  
      with ops.Graph().as_default():
          w_vector = variable_v1.VariableV1([1, 2, 3], name="w")
          with session.Session(
              server.target, config=sharing_config
          ) as sess:
              with self.assertRaises(
                  errors_impl.FailedPreconditionError
              ):
                  sess.run(w_vector)
              sess.run(w_vector.initializer)
              self.assertAllEqual([1, 2, 3], sess.run(w_vector))
  
      with ops.Graph().as_default():
          w_vector = variable_v1.VariableV1([4, 5, 6], name="w")
          with session.Session(
              server.target, config=sharing_config
          ) as sess:
              self.assertAllEqual([1, 2, 3], sess.run(w_vector))
              sess.run(w_vector.initializer)
              self.assertAllEqual([4, 5, 6], sess.run(w_vector))
  
      with ops.Graph().as_default():
          w_scalar = variable_v1.VariableV1(37, name="w")
          with session.Session(
              server.target, config=isolate_config
          ) as sess:
              with self.assertRaises(
                  errors_impl.FailedPreconditionError
              ):
                  sess.run(w_scalar)
              sess.run(w_scalar.initializer)
              self.assertAllEqual(37, sess.run(w_scalar))
  
imports: import time
  import numpy
  from tensorflow.core.protobuf import cluster_pb2
  from tensorflow.core.protobuf import config_pb2
  from tensorflow.core.protobuf import tensorflow_server_pb2
  from tensorflow.python.client import session
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors_impl
  from tensorflow.python.framework import ops
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import data_flow_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import variable_v1
  from tensorflow.python.ops import variables
  from tensorflow.python.platform import test
  from tensorflow.python.training import input
  from tensorflow.python.training import queue_runner_impl
  from tensorflow.python.training import server_lib
  from tsl.protobuf import rpc_options_pb2
label_desc: Use image node_id 18 for calling the GrpcServerTest obj's underlying member method code with example usage: obj.testShapeChangingIsolateState() without return types