class SomeClass {

	// Define input and output types
	private var qwolm: Qwolm<Int, Int>!

	init() {
		// Initialize with a task and a completion handler
		qwolm = Qwolm(task: complexTask) { output in
			print(output)
		}
	}

	// This function gets called very often
	func execute(input: Int) {
		qwolm.execute(input: input)
	}

	// A difficult task that takes a long time
	private func complexTask(input: Int, completion: @escaping (Int) -> Void) {
		let output = input + 1
		completion(output)
	}

}