partial void DeleteCEP(CEP instance);
 partial void UpdateCEP(CEP instance);
		private void detach_CEPs(CEP entity)
		{
			this.SendPropertyChanging();
			entity.Cidade = null;
		}
 partial void InsertCEP(CEP instance);
		private void attach_CEPs(CEP entity)
		{
			this.SendPropertyChanging();
			entity.Cidade = this;
		}