「イミテーション」→ 本物の真似、または模倣品。ややネガティブな意味が含まれることがある。 Therefore the error is legit. But when we Test which the property exists right before accessing it, Typescript will consider that into consideration and allow dot entry: Another matter you might contemplate, should you be unable to modify the original variety, is extending the sort like so: 教育者... https://ddjayplotsrohtak.water.blog/