class_docstr: MSR Paraphrase Identification problems.
class_docstr_tok: ["MSR","Paraphrase","Identification","problems","."]
code: def _maybe_download_corpora(self, tmp_dir):
      mrpc_dir = os.path.join(tmp_dir, self.DATA_DIR)
      tf.gfile.MakeDirs(mrpc_dir)
      mrpc_train_finalpath = os.path.join(
          mrpc_dir, "msr_paraphrase_train.txt"
      )
      mrpc_test_finalpath = os.path.join(
          mrpc_dir, "msr_paraphrase_test.txt"
      )
      mrpc_dev_ids_finalpath = os.path.join(mrpc_dir, "dev_ids.tsv")
  
      def download_file(tdir, filepath, url):
          if not tf.gfile.Exists(filepath):
              generator_utils.maybe_download(tdir, filepath, url)
  
      download_file(mrpc_dir, mrpc_train_finalpath, self.MRPC_TRAIN)
      download_file(mrpc_dir, mrpc_test_finalpath, self.MRPC_TEST)
      download_file(mrpc_dir, mrpc_dev_ids_finalpath, self.DEV_IDS)
  
      return mrpc_dir
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  from tensor2tensor.data_generators import generator_utils
  from tensor2tensor.data_generators import problem
  from tensor2tensor.data_generators import text_encoder
  from tensor2tensor.data_generators import text_problems
  from tensor2tensor.utils import registry
  import tensorflow.compat.v1
label_desc: Use image node_id 6 for calling the MSRParaphraseCorpus obj's underlying member method code with example usage: obj._maybe_download_corpora(tmp_dir) and returns: mrpc_dir