/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

public protocol Cancellable: class {
    func cancel()
    var cancelled: Bool { get }
    var running: Bool { get set }
}