code: def testDTypeSerialization(self, dtype):
      self.assertEqual(
          trace_type.deserialize(trace_type.serialize(dtype)), dtype
      )
  
imports: from absl.testing import parameterized
  import numpy
  from tensorflow.python.framework import _dtypes
  from tensorflow.core.framework import types_pb2
  from tensorflow.core.function import trace_type
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import test_util
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 25 for calling the TypesTest obj's underlying member method code with example usage: obj.testDTypeSerialization(dtype) without return types