old_contents: from . import base
  
  from.base import Pipeline
  
  from .base import ExtractionStage
  from .base import ProcessingStage
  
  from .extraction import SpectrumExtractionStage
  from .extraction import MelFilterbankExtractionStage
  from .extraction import MFCCExtractionStage
  
  from .scaling import ExponentialStage
  from .scaling import LogStage
  from .scaling import RescalingStage
  
  from .splicing import SpliceStage
  from .splicing import UnspliceMergeType
  from .splicing import UnspliceStage
  
  from .convertion import MelToMFCCStage
  
  
  def mel_extraction_pipeline(win_length=400, win_step=160, num_mel=23):
      return base.Pipeline(extract_stage=MelFilterbankExtractionStage(num_mel=num_mel, win_length=win_length, win_step=win_step))
  
  
  def mfcc_extraction_pipeline(win_length=400, win_step=160, num_mfcc=13, num_mel=23):
      return base.Pipeline(extract_stage=MFCCExtractionStage(num_mfcc=num_mfcc, num_mel=num_mel, win_length=win_length, win_step=win_step))
  
new_contents: from .base import Pipeline
  
  from .base import ExtractionStage
  from .base import ProcessingStage
  
  from .extraction import SpectrumExtractionStage
  from .extraction import MelFilterbankExtractionStage
  from .extraction import MFCCExtractionStage
  
  from .scaling import ExponentialStage
  from .scaling import LogStage
  from .scaling import RescalingStage
  
  from .splicing import SpliceStage
  from .splicing import UnspliceMergeType
  from .splicing import UnspliceStage
  
  from .convertion import MelToMFCCStage
  
  
  def mel_extraction_pipeline(win_length=400, win_step=160, num_mel=23):
      return Pipeline(extract_stage=MelFilterbankExtractionStage(num_mel=num_mel, win_length=win_length, win_step=win_step))
  
  
  def mfcc_extraction_pipeline(win_length=400, win_step=160, num_mfcc=13, num_mel=23):
      return Pipeline(extract_stage=MFCCExtractionStage(num_mfcc=num_mfcc, num_mel=num_mel, win_length=win_length, win_step=win_step))
  
subject: fix import