partial void Deletesets_users(sets_users instance);
 partial void Updatesets_users(sets_users instance);
		private void detach_sets_users(sets_users entity)
		{
			this.SendPropertyChanging();
			entity.users = null;
		}
 partial void Insertsets_users(sets_users instance);
		private void attach_sets_users(sets_users entity)
		{
			this.SendPropertyChanging();
			entity.users = this;
		}