hermanbanken/WWDC.2019.Combine.3.swift

## WWDC.2019.Combine.3.swift
@available(iOS 13.0, *)
let p = Publishers.Future { (subscriber: @escaping (Result<Int,Error>) -> Void) in
    DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(2), execute: {
        subscriber(.success(42))
    })
}
	@available(iOS 13.0, *)
	let p = Publishers.Future { (subscriber: @escaping (Result<Int,Error>) -> Void) in
	DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(2), execute: {
	subscriber(.success(42))
	})
	}