code: def testClusterSpecPropagationWorker1Placement(self):
      server1 = server_lib.Server.create_local_server()
      server2 = server_lib.Server.create_local_server()
      cluster_def = cluster_pb2.ClusterDef()
      job = cluster_def.job.add()
      job.name = "worker"
      job.tasks[0] = server1.target[len("grpc://") :]
      job.tasks[1] = server2.target[len("grpc://") :]
      config = config_pb2.ConfigProto(cluster_def=cluster_def)
  
      with ops.Graph().as_default() as g, ops.device(
          "/job:worker/task:0"
      ):
          const = constant_op.constant(17)
      with session.Session(server1.target, config=config, graph=g):
          output = self.evaluate(const)
      self.assertEqual(17, output)
  
imports: import numpy
  from tensorflow.core.protobuf import cluster_pb2
  from tensorflow.core.protobuf import config_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
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import resource_variable_ops
  from tensorflow.python.ops import state_ops
  from tensorflow.python.ops import variables
  from tensorflow.python.platform import googletest
  from tensorflow.python.platform import test
  from tensorflow.python.training import server_lib
label_desc: Use image node_id 3 for calling the SessionClusterSpecPropagationTest obj's underlying member method code with example usage: obj.testClusterSpecPropagationWorker1Placement() without return types