let q = EasyThread.getQueue(processors: 1)
    q.dispatch {
        print("uno")
    }
    q.dispatch {
        print("due")
    }
    q.dispatch {
        print("tre")
    }
}

let q = EasyThread.getQueue(processors: 10)
    q.dispatch {
        print("uno")
    }
    q.dispatch {
        print("due")
    }
    q.dispatch {
        print("tre")
    }
}

    try? Promise<Int>{
        return 10
    }.next { r -> String in
        let v = try 
        return "test"
    }.next { r -> Int in
        let v = try r()
        return 1
    }.fail { error in
        print(error)
    }.wait()