code: def testSoftPlacedCPUConstant(self, value, dtype):
      if test_util.is_gpu_available():
          self.skipTest("CPU only test")
      with ops.device("GPU:0"):
          a = constant_op.constant(value, dtype=dtype)
      self.assertIn("CPU:0", a.device)
      self.assertIn("CPU:0", a.backing_device)
  
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 8 for calling the SoftDevicePlacementTest obj's underlying member method code with example usage: obj.testSoftPlacedCPUConstant(value, dtype) without return types