          Parameters
          ----------
          extractor_type: {'aligner', 'detector', 'masker'}
              The type of extractor to return the plugins for
  
          Returns
          -------
          list:
              A list of the available extractor plugin names for the given type
          """
 
</s> remove     def get_available_extractors(extractor_type):
 </s> add     def get_available_extractors(extractor_type, add_none=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         and vgg-obstructed. The worst ratio is selected for each combination, plus a litle extra
 </s> add         and vgg-obstructed. The worst ratio is selected for each combination, plus a little extra </s> remove                     "\nL|none: An array of all ones is created to provide a 4th channel that will "
                    "not mask any portion of the image."
 </s> add                     "\nL|none: Don't use a mask."
        add_none: bool, optional
            Append "none" to the list of returned plugins. Default: False
          Parameters
          ----------
          extractor_type: {'aligner', 'detector', 'masker'}
              The type of extractor to return the plugins for
        add_none: bool, optional
            Append "none" to the list of returned plugins. Default: False
          Returns
          -------
          list:
              A list of the available extractor plugin names for the given type
          """
keep keep keep keep replace 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/plugin_loader.py