code: def _download_data(stage):
      if stage in ["train", "dev"]:
          return _download_train_dev_data()
      else:
          return _download_test_data()
  
file_path: MatchZoo/matchzoo/datasets/cqa_ql_16/load_data.py
imports: import xml
  import typing
  from pathlib import Path
  import keras
  import pandas
  import matchzoo
label_desc: Use image node_id 2 for calling a global function with example usage: _download_data(stage) and returns: _download_train_dev_data, _download_test_data