code: def test_column_parallel_linear_sequence_parallel(self):
      if self.DISTRIBUTED_BACKEND == "ucc":
          self.skipTest(
              "Backward's reduce_scatter fails. as of 2022/06/15"
          )
      self._column_parallel_linear_test_impl(False, False, False, True)
  
imports: import logging
  import unittest
  import typing
  import torch
  import torch.nn
  from torch.testing._internal import common_utils
  from apex.transformer import parallel_state
  from apex.transformer.tensor_parallel import layers
  from apex.transformer.testing.commons import set_random_seed
  from apex.transformer.testing.distributed_test_base import NcclDistributedTestBase
  from apex.transformer.testing.distributed_test_base import UccDistributedTestBase
label_desc: Use image node_id 19 for calling the TensorParallelLayerTestBase obj's underlying member method code with example usage: obj.test_column_parallel_linear_sequence_parallel() without return types