code: def _get_blockwise_sparsifier(
      self, block_size, sparsity, columnwise_blocking=False
  ):
      config = BlockwiseMagnitudeSparsifier.Config(
          block_size=block_size,
          sparsity=sparsity,
          columnwise_blocking=columnwise_blocking,
      )
      return BlockwiseMagnitudeSparsifier.from_config(config)
  
file_path: pytext/pytext/optimizer/sparsifiers/tests/sparsifier_test.py
imports: import math
  import unittest
  import torch
  from pytext.optimizer.sparsifiers.blockwise_sparsifier import BlockwiseMagnitudeSparsifier
label_desc: Use image node_id 1 for calling the TestSparsifier obj's underlying member method code with example usage: obj._get_blockwise_sparsifier(block_size, sparsity, columnwise_blocking) and returns: BlockwiseMagnitudeSparsifier