class DefaultKeyConvertorParser implements KeyConvertorParser {
    @Override
    public Function<Object, Object> parseKeyConvertor(String convertor) {<FILL_FUNCTION_BODY>}
}

        if (convertor == null) {
            return null;
        }
        if (KeyConvertor.FASTJSON.equalsIgnoreCase(convertor)) {
            return FastjsonKeyConvertor.INSTANCE;
        } else if (KeyConvertor.FASTJSON2.equalsIgnoreCase(convertor)) {
            return Fastjson2KeyConvertor.INSTANCE;
        } else if (KeyConvertor.JACKSON.equalsIgnoreCase(convertor)) {
            return JacksonKeyConvertor.INSTANCE;
        } else if (KeyConvertor.NONE.equalsIgnoreCase(convertor)) {
            return KeyConvertor.NONE_INSTANCE;
        }
        throw new CacheConfigException("not supported:" + convertor);
    
<no_super_class>