public void StopTracking(TLPeerBase peer)
{
var message = Items.FirstOrDefault(x => peer.Equals(x.Parent.ToPeer()));
if (message != null)
{
Items.Remove(message);
Update(message, null, true);
}
}
public bool IsTracking(TLPeerBase peer)
{
return(Items.Any(x => x.Parent != null && peer.Equals(x.Parent.ToPeer())));
}