code: def testSliceConcat(self):
      for sp_input in (
          self._SparseTensorValue_3x4x2(),
          self._SparseTensor_3x4x2(),
      ):
          for axis in (1, -2):
              sparse_tensors = sparse_ops.sparse_split(
                  sp_input=sp_input, num_split=2, axis=axis
              )
              concat_tensor = self.evaluate(
                  sparse_ops.sparse_concat(1, sparse_tensors)
              )
              expected_output = self._SparseTensor_3x4x2()
              self.assertAllEqual(
                  concat_tensor.indices, expected_output.indices
              )
  
imports: import numpy
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import sparse_tensor
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import gen_sparse_ops
  from tensorflow.python.ops import sparse_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 12 for calling the SparseSplitOpTest obj's underlying member method code with example usage: obj.testSliceConcat() without return types