「イミテーションジュエリー」→ 「模倣品」や「偽物」というネガティブな印象を持たれがち。 @MarkusMeskanen: as the item is immutable, and when you mutated it in position you might not specialise it inside a subclass. An additional point you could possibly think about, should you be unable to switch the original type, is extending the sort like so: 空から降る一億の星(韓国ドラマ) 全話あらす... https://properties-new-gurgaon.mystrikingly.com/blog/central-park-104-sector-104-gurgaon-redefining-island-living-on-dwarka