Function context

packages/effect/src/Context.ts:286–291

(
    this: Service<Identifier, Shape>,
    self: Shape
  )

    return self
  },
  context<Identifier, Shape>(
    this: Service<Identifier, Shape>,
    self: Shape
  ): Context<Identifier> {
    return make(this, self)
  },
  use<A, E, R>(this: Service<never, any>, f: (service: any) => Effect<A, E, R>): Effect<A, E, R> {
    return withFiber((fiber) => f(get(fiber.context, this)))
  },