class_docstr: base class for speech task
code: def mode(self):
      return self._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 2 for calling the SpeechTask obj's underlying member method code with example usage: obj.mode() and returns: self