class_docstr: base class for speech task
code: def __init__(self, config, mode):
      super().__init__(config)
      assert mode in (utils.TRAIN, utils.EVAL, utils.INFER)
      self._mode = mode
  
file_path: delta/delta/data/task/base_speech_task.py
imports: from delta import utils
  from delta.data import utils
  from delta.data.task.base_task import WavSpeechTask
label_desc: Use image node_id 1 to create a new SpeechTask object from inherited base classes: WavSpeechTask with example: obj = SpeechTask(config, mode)