          to ``0`` for off. Default: ``0``
      normalize_method: {`None`, 'clahe', 'hist', 'mean'}, optional
          Used to set the :attr:`~plugins.extract.align.normalize_method` attribute. Normalize the
          images fed to the aligner.Default: ``None``
  
      Attributes
      ----------
      phase: str
          The current phase that the pipeline is running. Used in conjunction with :attr:`passes` and
          :attr:`final_pass` to indicate to the caller which phase is being processed
 
</s> remove                  normalize_method=None):
 </s> add                  normalize_method=None, image_is_aligned=False): </s> remove     Attributes
    ----------
    blur_kernel, int
        The size of the kernel for applying gaussian blur to the output of the mask

 </s> add  </s> remove 
 </s> add         add_none: bool, optional
            Append "none" to the list of returned plugins. Default: False
    image_is_aligned: bool, optional
        Used to set the :attr:`~plugins.extract.mask.image_is_aligned` attribute. Indicates to the
        masker that the fed in image is an aligned face rather than a frame.Default: ``False``
          to ``0`` for off. Default: ``0``
      normalize_method: {`None`, 'clahe', 'hist', 'mean'}, optional
          Used to set the :attr:`~plugins.extract.align.normalize_method` attribute. Normalize the
          images fed to the aligner.Default: ``None``
    image_is_aligned: bool, optional
        Used to set the :attr:`~plugins.extract.mask.image_is_aligned` attribute. Indicates to the
        masker that the fed in image is an aligned face rather than a frame.Default: ``False``
  
      Attributes
      ----------
      phase: str
          The current phase that the pipeline is running. Used in conjunction with :attr:`passes` and
          :attr:`final_pass` to indicate to the caller which phase is being processed
keep keep keep add keep keep keep keep keep keep
 Extract - Mask updates

- Remove none mask plugin
- Make pipeline more flexible
- Add support for pre-aligned faces to masker plugin
- Migrate blur and threshold settings to mask output 
plugins/extract/pipeline.py