Method toFuture

src/main/java/io/reactivex/rxjava3/core/Maybe.java:4525–4530

Returns a Future representing the single value emitted by the current Maybe or null if the current Maybe is empty. Cancelling the {@code

()

     * @since 3.0.0
     */
    @CheckReturnValue
    @SchedulerSupport(SchedulerSupport.NONE)
    @NonNull
    public final Future<T> toFuture() {
        return subscribeWith(new FutureMultiObserver<>());
    }

    /**
     * Converts this {@code Maybe} into an {@link Observable} instance composing disposal