Out

sealed class Out<E, out A>

Outcome of business function.

It is ~ Future<Either<E,A>> (in vavr style0 the reason for not using vavr here was:

flatMap	`abstract fun <B> flatMap(f: (A) -> Out<E, B>): Out<E, B>`
handle	`fun <E1, B> handle(fe: (E) -> Out<E1, B>, fa: (A) -> B): Out<E1, B>`
map	`abstract fun <B> map(f: (A) -> B): Out<E, B>`
mapLeft	`abstract fun <E1> mapLeft(f: (E) -> E1): Out<E1, A>`
toFuture	`abstract fun toFuture(): Future<out Either<E, out A>>`

fromFuture	`fun <E, A> fromFuture(future: Future<Either<E, A>>): Out<E, A>`
left	`fun <E, A> left(e: E): Out<E, A>`
right	`fun <E, A> right(a: A): Out<E, A>` `fun <E, A> right(future: Future<A>): Out<E, A>`