@JvmName("matchingExtension") infix fun Regex.matching(block: MessageListener<M, R>): Ret
fun matching(regex: Regex): ListeningFilter<M, Ret, R, RR>
消息内容可由正则表达式匹配(Regex.matchEntire)
fun matching(regex: Regex, onEvent: suspend M.(MatchResult) -> Unit): Ret
消息内容可由正则表达式匹配(Regex.matchEntire), 就执行 onEvent