import argparse

parser = argparse.ArgumentParser()
parser.add_argument("prompt",    nargs="?",   default=None, help="Single prompt to answer, then exit. Omit for interactive chat")
parser.add_argument("--system",  type=str,    default=None, help="Override system prompt from config")
parser.add_argument("--max-tokens", type=int, default=None, help="Override config MAX_TOKENS")