partial void DeleteBeer(Beer instance);
 partial void UpdateBeer(Beer instance);
		private void detach_Beers(Beer entity)
		{
			this.SendPropertyChanging();
			entity.Brewery = null;
		}
 partial void InsertBeer(Beer instance);
		private void attach_Beers(Beer entity)
		{
			this.SendPropertyChanging();
			entity.Brewery = this;
		}