public final <U> Flux<T> sampleTimeout(Function<? super T,? extends Publisher<U>> throttlerFactory)
和
public final <U> Flux<T> sampleTimeout(Function<? super T,? extends Publisher<U>> throttlerFactory,
int maxConcurrency)
https://projectreactor.io/docs/core/release/api/reactor/core/publisher/Flux.html
任何人都可以帮助我理解这两种方法? sample和Duration我都看懂了,但是上图中的各种符号我不是很懂