Package Summary Overview Summary

### class:Flow.Subscription [NONE]
Enclosing class: `Flow` public static interface Flow.Subscription Message control linking a `Flow.Publisher` and `Flow.Subscriber`. Subscribers receive items only when requested, and may cancel at any time. The methods in this interface are intended to be invoked only by their Subscribers; usages in other contexts have undefined effects.

### method:request(long) [NONE]
### request void request (long n) Adds the given number `n` of items to the current unfulfilled demand for this subscription. If `n` is less than or equal to zero, the Subscriber will receive an `onError` signal with an `IllegalArgumentException` argument. Otherwise, the Subscriber will receive up to `n` additional `onNext` invocations (or fewer if terminated). Parameters: `n` - the increment of demand; a value of `Long.MAX_VALUE` may be considered as effectively unbounded

### method:cancel() [NONE]
### cancel void cancel() Causes the Subscriber to (eventually) stop receiving messages. Implementation is best-effort -- additional messages may be received after invoking this method. A cancelled subscription need not ever receive an `onComplete` or `onError` signal.