public override void FeedRequest(
string toId = "",
string link = "",
string linkName = "",
string linkCaption = "",
string linkDescription = "",
string picture = "",
string mediaSource = "",
string actionName = "",
string actionLink = "",
string reference = "",
Dictionary<string, string[]> properties = null,
FacebookDelegate callback = null)
{
iosFeedRequest(System.Convert.ToInt32(AddFacebookDelegate(callback)), toId, link, linkName, linkCaption, linkDescription, picture, mediaSource, actionName, actionLink, reference);
}