src/main/java/io/reactivex/parallel/ParallelFlowable.java
@CheckReturnValue
    @NonNull
    public final Flowable<T> sorted(@NonNull Comparator<? super T> comparator) {
        return sorted(comparator, 16);
    }
@CheckReturnValue
    @NonNull
    public final Flowable<T> sorted(@NonNull Comparator<? super T> comparator) {
        return sorted(comparator, 16);
    }
@ CheckReturnValue @ NonNull public final Flowable < T > sorted ( @ NonNull Comparator < ? super T > comparator ) { return sorted ( comparator , 16 ) ; }
Sorts the 'rails' of this ParallelFlowable and returns a Publisher that sequentially
picks the smallest next value from the rails.
<p>
This operator requires a finite source ParallelFlowable.

@param comparator the comparator to use
@return the new Flowable instance
Sorts the rails of this ParallelFlowable and returns a Publisher that sequentially picks the smallest next value from the rails . <p > This operator requires a finite source ParallelFlowable .