code: def testRemoteUnknownDevice(self):
      a = constant_op.constant(1)
      b = constant_op.constant(2)
      # Right now we don't support soft device place on remote worker.
      with self.assertRaises(errors.InvalidArgumentError) as cm:
          with ops.device("/job:worker/replica:0/task:0/device:GPU:42"):
              c = a + b
              del c
          self.assertIn("unknown device", cm.exception.message)
  
imports: from absl.testing import parameterized
  from tensorflow.python.eager import context
  from tensorflow.python.eager import def_function
  from tensorflow.python.eager import remote
  from tensorflow.python.eager import test
  from tensorflow.python.framework import config
  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 random_ops
label_desc: Use image node_id 3 for calling the ClusterPlacementTest obj's underlying member method code with example usage: obj.testRemoteUnknownDevice() without return types