code: def testPlaceholderWithName(self):
      placeholder_context = trace_type.InternalPlaceholderContext(
          ops.get_default_graph()
      )
      spec = tensor.TensorSpec([1], np.float32, name="test")
      placeholder = spec.placeholder_value(placeholder_context)
      self.assertEqual(placeholder.name, f"{spec.name}:0")
      self.assertEqual(placeholder.dtype, spec.dtype)
      self.assertEqual(placeholder.shape, spec.shape)
  
imports: import pickle
  from absl.testing import parameterized
  import numpy
  from tensorflow.core.framework import full_type_pb2
  from tensorflow.core.function import trace_type
  from tensorflow.python.eager import context
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import tensor
  from tensorflow.python.framework import tensor_shape
  from tensorflow.python.framework import test_util
  from tensorflow.python.framework import type_spec
  from tensorflow.python.framework.type_utils import fulltypes_for_flat_tensors
  from tensorflow.python.ops import array_ops
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 23 for calling the TensorSpecTest obj's underlying member method code with example usage: obj.testPlaceholderWithName() without return types