code: def get_reader(name, mode, cfg):
      reader_model = reader_zoo.get(name, mode, cfg)
      return reader_model.create_reader()
  
file_path: PaddleHub/modules/video/classification/videotag_tsn_lstm/resource/reader/reader_utils.py
label_desc: Use image node_id 2 for calling a global function with example usage: get_reader(name, mode, cfg) and returns: reader_model