class_docstr: Base class for transferring styles problems
class_docstr_tok: ["Base","class","for","transferring","styles","problems"]
code: def source_target_paths(self, dataset_split, tmp_dir):
      tag = (
          "train"
          if dataset_split == problem.DatasetSplit.TRAIN
          else "dev"
      )
      source_path = os.path.join(tmp_dir, tag + self.source)
      target_path = os.path.join(tmp_dir, tag + self.target)
      return source_path, target_path
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  import tarfile
  from tensor2tensor.data_generators import generator_utils
  from tensor2tensor.data_generators import problem
  from tensor2tensor.data_generators import text_problems
  from tensor2tensor.utils import registry
label_desc: Use image node_id 9 for calling the StyleTransferProblemShakespeare obj's underlying member method code with example usage: obj.source_target_paths(dataset_split, tmp_dir) and returns: source_path,  target_path