def METHOD_NAME(cls):
    # ignore None keys
    cls._args = {k: v for k, v in cls._args.items() if k is not None}
    # remove prefix and main command
    if cls._num_commands == 1:
        cmd = sorted(cls._args.keys())[0]
        skip = len(cmd) + 1
    else:
        skip = 0
    _args = {
        cls._section_name + "/" + k[skip:]: v
        for k, v in cls._args.items()
        if k[skip:]
    }
    _args_type = {
        cls._section_name + "/" + k[skip:]: v
        for k, v in cls._args_type.items()
        if k[skip:]
    }
    _args_desc = {
        cls._section_name + "/" + k[skip:]: v
        for k, v in cls._args_desc.items()
        if k[skip:]
    }
    return _args, _args_type, _args_desc