private void detach_SessionPresenter(SessionPresenter entity)
		{
			this.SendPropertyChanging();
			entity.Attendees = null;
		}
 partial void DeleteSessionPresenter(SessionPresenter instance);
 partial void InsertSessionPresenter(SessionPresenter instance);
 partial void UpdateSessionPresenter(SessionPresenter instance);
		private void attach_SessionPresenter(SessionPresenter entity)
		{
			this.SendPropertyChanging();
			entity.Sessions = this;
		}