 	/// Submits a work item to a dispatch queue for asynchronous execution after
 	/// a specified time.
 	///
-	/// - parameter deadline the time after which the work item should be executed,
+	/// - parameter deadline: the time after which the work item should be executed,
 	/// given as a `DispatchTime`.
 	/// - parameter qos: the QoS at which the work item should be executed.
 	///	Defaults to `DispatchQoS.unspecified`.

	/// Submits a work item to a dispatch queue for asynchronous execution after
	/// a specified time.
	///
	/// - parameter deadline the time after which the work item should be executed,
	/// given as a `DispatchWallTime`.
	/// - parameter qos: the QoS at which the work item should be executed.
	///	Defaults to `DispatchQoS.unspecified`.

	/// Submits a work item to a dispatch queue for asynchronous execution after
	/// a specified time.
	///
	/// - parameter deadline: the time after which the work item should be executed,
	/// given as a `DispatchTime`.
	/// - parameter execute: The work item to be invoked on the queue.
	/// - SeeAlso: `asyncAfter(deadline:qos:flags:execute:)`
