fn parse_request(mut parts: std::str::SplitWhitespace<'_>) -> RequestParserResult<'_> {

        debug_assert!(parts.next().is_none());

        Ok((Request::StickerTypes, ""))

    }

    fn parse_response(

        parts: ResponseAttributes<'_>,

    ) -> Result<Self::Response, ResponseParserError> {

        debug_assert!(parts.0.iter().all(|(k, _)| *k == "stickertype"));

        let list = parts

            .0

            .iter()

            .map(|(_, v)| match v {

                GenericResponseValue::Text(value) => Ok(value.to_string()),

                GenericResponseValue::Binary(_) => Err(

                    ResponseParserError::UnexpectedPropertyType("stickertype", "Binary"),

                ),

            })

            .collect::<Result<Vec<_>, ResponseParserError>>()?;

        Ok(list)

    }