Pattern for Mapping an `Effect<Option<A>>` with `(A) => Effect<B>`

import { Effect, Option, pipe } from "effect"

declare const foo: Effect.Effect<Option.Option<string>>
declare function bar(s: string): Effect.Effect<number>

const test = pipe(
  foo,
  Effect.flatten,
  Effect.flatMap(bar),
  Effect.optionFromOptional
)