     public var activityType: UIActivityType {
         return UIActivityType(ActivityControllerShareDestination.name)
     }
+
+    public init() {}
 }
 
 /// A ShareDestination for sharing to Twitter.

    public var activityType: UIActivityType {
        return UIActivityType(PasteboardShareDestination.name)
    }
}

/// A ShareDestination for sharing to the `UIActivityViewController`.

    public var activityType: UIActivityType {
        return UIActivityType(TencentWeiboShareDestination.name)
    }

    public init() {}
}

/// A ShareDestination for sharing to Sina Weibo.
