class_docstr: data reader for video input
code: def __init__(self, model_name, mode, cfg):
      self.name = model_name
      self.mode = mode
      self.cfg = cfg
  
file_path: PaddleHub/modules/video/classification/videotag_tsn_lstm/resource/reader/reader_utils.py
label_desc: Use image node_id 1 to create a new DataReader object from inherited base classes: object with example: obj = DataReader(model_name, mode, cfg)