code: def testGetCompositeTensorTypeSpec(self):
      ragged_tensor = tf.ragged.constant([[1, 2], [3]])
      self.assertIsInstance(
          tf_utils.get_composite_tensor_type_spec(ragged_tensor),
          tf.RaggedTensorSpec,
      )
  
      sparse_tensor = tf.SparseTensor(
          [[0, 2], [3, 2]], [5, 6], [10, 10]
      )
      self.assertIsInstance(
          tf_utils.get_composite_tensor_type_spec(sparse_tensor),
          tf.SparseTensorSpec,
      )
  
      tensor = tf.constant([1, 2, 3])
      self.assertIs(
          tf_utils.get_composite_tensor_type_spec(tensor), None
      )
  
imports: import tensorflow
  from tensorflow_hub import tf_utils
label_desc: Use image node_id 2 for calling the TfUtilsTest obj's underlying member method code with example usage: obj.testGetCompositeTensorTypeSpec() without return types