code: def readFiles(dpath, rfnames):
      en_fname, de_fname = rfnames
      with PathManager.open(os.path.join(dpath, en_fname), "r") as f:
          # We replace '##AT##-##AT##' as a workaround in order to use the
          # nltk tokenizer specified by DictionaryAgent
          en = [l[:-1].replace("##AT##-##AT##", "__AT__") for l in f]
  
      with PathManager.open(os.path.join(dpath, de_fname), "r") as f:
          de = [l[:-1].replace("##AT##-##AT##", "__AT__") for l in f]
  
      return list(zip(de, en))
  
imports: import parlai.core.build_data
  import os
  import numpy
  from parlai.core.build_data import DownloadableFile
  from parlai.utils.io import PathManager
label_desc: Use image node_id 1 for calling a global function with example usage: readFiles(dpath, rfnames) and returns: list