                      you wish to process. Defaults to 'models'")
  
          parser.add_argument('-t', '--trainer',
                              type=str,
                              choices=("Original", "LowMem"), # case sensitive because this is used to load a plug-in.
                              default="Original",
                              help="Select the trainer that was used to create the model.")
                              
          parser.add_argument('-s', '--swap-model',
                              action="store_true",
 
</s> remove                             choices=("Masked", "Adjust"), # case sensitive because this is used to load a plug-in.
 </s> add                             choices=("Masked", "Adjust", "GAN"), # case sensitive because this is used to load a plugin. </s> remove                             choices=("Original", "LowMem"),
 </s> add                             choices=("Original", "LowMem", "GAN"),
                            choices=("Original", "LowMem", "GAN"), # case sensitive because this is used to load a plug-in.
                      you wish to process. Defaults to 'models'")
  
          parser.add_argument('-t', '--trainer',
                              type=str,
                            choices=("Original", "LowMem", "GAN"), # case sensitive because this is used to load a plug-in.
                              default="Original",
                              help="Select the trainer that was used to create the model.")
                              
          parser.add_argument('-s', '--swap-model',
                              action="store_true",
keep keep keep keep replace keep keep keep keep keep
 Adding GAN plugin (#102)

Update GAN plugin to latest official version 
scripts/convert.py