{title: {'-a': Option(), '--all': Option()}}

def set_option_name_2_instance(self, options):
        """{title: {'-a': Option(), '--all': Option()}}"""
        title_opt_2_ins = self.titled_opt_to_ins
        title_opt_2_ins.clear()
        for title, opts in options.items():
            title_opt_2_ins[title] = opt_2_ins = {}
            for each in opts:
                opt_ins = each[0]  # get Option inside Optional/Required
                for name in opt_ins.names:
                    opt_2_ins[name] = each