partial void UpdateSlot(Slot instance);
 partial void DeleteSlot(Slot instance);
 partial void InsertSlot(Slot instance);
		private void detach_Slots(Slot entity)
		{
			this.SendPropertyChanging();
			entity.Activity = null;
		}
		private void attach_Slots(Slot entity)
		{
			this.SendPropertyChanging();
			entity.Activity = this;
		}
		private void detach_Slots(Slot entity)
		{
			this.SendPropertyChanging();
			entity.Trainer = null;
		}
		private void attach_Slots(Slot entity)
		{
			this.SendPropertyChanging();
			entity.Trainer = this;
		}