def option(*param_decls, **attrs):
    def decorator(f):
        if 'help' in attrs:
            attrs['help'] = inspect.cleandoc(attrs['help'])
        OptionClass = attrs.pop('cls', Option)
        _param_memo(f, OptionClass(param_decls, **attrs))
        return f
    return decorator
Attaches an option to the command.  All positional arguments are
dataset/ETHPy150Open pallets/click/click/decorators.py/option