Understanding TypeScript's Spread Operator in Types
https://www.webdevtutor.net/blog/typescript-spread-operator-in-type
Mastering TypeScript Spread a Type: A Comprehensive Guide
https://www.webdevtutor.net/blog/typescript-spread-a-type
Mastering TypeScript Spread and Generic Types: A Comprehensive Guide
https://www.webdevtutor.net/blog/typescript-spread-generic-type
もしかしてこれAIの幻覚だったりする？