partial void DeleteStop_time(Stop_time instance);
 partial void UpdateStop_time(Stop_time instance);
		private void detach_Stop_times(Stop_time entity)
		{
			this.SendPropertyChanging();
			entity.Trip = null;
		}
 partial void InsertStop_time(Stop_time instance);
		private void attach_Stop_times(Stop_time entity)
		{
			this.SendPropertyChanging();
			entity.Trip = this;
		}