parser.add_argument('--dataset',metavar='PATH',type=str,required=True,help='Input file, directory, or glob pattern (utf-8 text, or preencoded .npz files).')
parser.add_argument('--model_name',metavar='MODEL',type=str,default='117M',help='Pretrained model name')
parser.add_argument('--combine',metavar='CHARS',type=int,default=50000,help='Concatenate input files with <|endoftext|> separator into chunks of this minimum size')
parser.add_argument('--encoding',type=str,default='utf-8',help='Set the encoding for reading and writing files.')