code: def _testFeedSerializeDeserializeBatchHelper(
      self, serialize_fn, deserialize_fn, out_type=dtypes.string
  ):
      with self.cached_session(use_gpu=False) as sess:
          sp_input0 = self._SparseTensorPlaceholder()
          sp_input1 = self._SparseTensorPlaceholder()
          input0_val = self._SparseTensorValue_5x6(np.arange(6))
          input1_val = self._SparseTensorValue_3x4(np.arange(6))
          serialized0 = serialize_fn(sp_input0, out_type=out_type)
          serialized1 = serialize_fn(sp_input1, out_type=out_type)
          serialized_concat = array_ops_stack.stack(
              [serialized0, serialized1]
          )
  
          sp_deserialized = deserialize_fn(
              serialized_concat, dtype=dtypes.int32
          )
  
          combined_indices, combined_values, combined_shape = sess.run(
              sp_deserialized,
              {sp_input0: input0_val, sp_input1: input1_val},
          )
  
          self.assertAllEqual(
              combined_indices[:6, 0], [0] * 6
          )  # minibatch 0
          self.assertAllEqual(combined_indices[:6, 1:], input0_val[0])
          self.assertAllEqual(
              combined_indices[6:, 0], [1] * 6
          )  # minibatch 1
          self.assertAllEqual(combined_indices[6:, 1:], input1_val[0])
          self.assertAllEqual(combined_values[:6], input0_val[1])
          self.assertAllEqual(combined_values[6:], input1_val[1])
          self.assertAllEqual(combined_shape, [2, 5, 6])
  
imports: import numpy
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import sparse_tensor
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import array_ops_stack
  from tensorflow.python.ops import gen_resource_variable_ops
  from tensorflow.python.ops import sparse_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 18 for calling the SerializeSparseTest obj's underlying member method code with example usage: obj._testFeedSerializeDeserializeBatchHelper(serialize_fn, deserialize_fn, out_type) without return types