class_docstr: :param int sampling_rate: Sampling rate of input audio. Mandatory if duration is provided.
  :param tuple zone: Assign a zone for augmentation. Default value is (0.2, 0.8) which means that no any
      augmentation will be applied in first 20% and last 20% of whole audio.
  :param float coverage: Portion of augmentation. Value should be between 0 and 1. If `1` is assigned, augment
      operation will be applied to target audio segment. For example, the audio duration is 60 seconds while
      zone and coverage are (0.2, 0.8) and 0.7 respectively. 42 seconds ((0.8-0.2)*0.7*60) audio will be
      augmented.
  :param int duration: Duration of augmentation (in second). Default value is None. If value is provided. `coverage`
      value will be ignored.
  :param bool mask_with_noise: If it is True, targeting area will be replaced by noise. Otherwise, it will be
          replaced by 0.
  :param str name: Name of this augmenter
  
  >>> import nlpaug.augmenter.audio as naa
  >>> aug = naa.MaskAug(sampling_rate=44010)
code: def substitute(self, data):
      start_pos, end_pos = self.get_augment_range_by_coverage(data)
  
      if not self.stateless:
          self.start_pos, self.end_pos = start_pos, end_pos
  
      return self.model.manipulate(
          data,
          start_pos=start_pos,
          end_pos=end_pos,
          mask_with_noise=self.mask_with_noise,
      )
  
imports: from nlpaug.augmenter.audio import AudioAugmenter
  import nlpaug.model.audio
  from nlpaug.util import Action, WarningMessage
label_desc: Use image node_id 2 for calling the MaskAug obj's underlying member method code with example usage: obj.substitute(data) and returns: self