Facebook.AndroidFacebook.PublishInstall C# (CSharp) Method

        public override void PublishInstall(string appId, FacebookDelegate callback = null)
        {
            var parameters = new Dictionary<string, string>(2);
            parameters["app_id"] = appId;
            if (callback != null)
            {
                parameters["callback_id"] = AddFacebookDelegate(callback);
            }
            CallFB("PublishInstall", MiniJSON.Json.Serialize(parameters));
        }