class_docstr: Problem spec for English-Czech CUBBITT (CUni Block-Backtranslation-Improved Transformer Translation).
class_docstr_tok: ["Problem","spec","for","English-Czech","CUBBITT","(","CUni","Block-Backtranslation-Improved","Transformer","Translation",")","."]
docstr: List of pairs of files with matched back-translated data.
docstr_tok: ["List","of","pairs","of","files","with","matched","back-translated","data","."]
code: def backtranslate_data_filenames(self):
      """List of pairs of files with matched back-translated data."""
      # Files must be placed in tmp_dir, each similar size to authentic data.
      return [
          ("cs_mono_en.txt%d" % i, "cs_mono_cs.txt%d" % i)
          for i in [0, 1, 2]
      ]
  
file_path: tensor2tensor/tensor2tensor/data_generators/translate_encs_cubbitt.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  from tensor2tensor.data_generators import problem
  from tensor2tensor.data_generators import text_problems
  from tensor2tensor.data_generators import translate
  from tensor2tensor.data_generators import translate_encs
  from tensor2tensor.utils import registry
label_desc: Use image node_id 4 for calling the TranslateEncsCubbitt obj's underlying member method code with example usage: obj.backtranslate_data_filenames() and returns: unknown