public function up(): void 	{ 		Schema::create('discount_items', function (Blueprint $table): void { 			$table->uuid('id')->primary(); 			$table->uuid('discount_id'); 			$table->uuidMorphs('item');  			$table->foreign('discount_id')->references('id')->on('discounts')->cascadeOnDelete(); 			$table->timestamps(); 		}); 	}