Merge two pre-sorted streams such that the resulting stream is sorted.

Emits when both inputs have an element available

Backpressures when downstream backpressures

Completes when all upstreams complete

Cancels when downstream cancels

public sealed class MergeSorted<T> : GraphStage<FanInShape<T, T, T>>

[<SealedAttribute>]
type MergeSorted<'T> =  
    class
        inherit GraphStage<FanInShape<'T, 'T, 'T>>
    end