                              default=False,
                              help="Writes the training result to a file even on preview mode.")
          parser.add_argument('-t', '--trainer',
                              type=str,
                              choices=("Original", "LowMem"),
                              default="Original",
                              help="Select which trainer to use, LowMem for cards < 2gb.")
          parser.add_argument('-bs', '--batch-size',
                              type=int,
                              default=64,
 
</s> remove                             choices=("Original", "LowMem"), # case sensitive because this is used to load a plug-in.
 </s> add                             choices=("Original", "LowMem", "GAN"), # case sensitive because this is used to load a plug-in. </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.
                            choices=("Original", "LowMem", "GAN"),
                              default=False,
                              help="Writes the training result to a file even on preview mode.")
          parser.add_argument('-t', '--trainer',
                              type=str,
                            choices=("Original", "LowMem", "GAN"),
                              default="Original",
                              help="Select which trainer to use, LowMem for cards < 2gb.")
          parser.add_argument('-bs', '--batch-size',
                              type=int,
                              default=64,
keep keep keep keep replace keep keep keep keep keep
 Adding GAN plugin (#102)

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