SimpleChanges
【Angular】在vscode中，某些库接口，如SimpleChanges，没有导入，鼠标移上去，ts语言功能没有快速修复选项，如何能够恢复快速修复功能？
It appears that until recently (before TypeScript 4 release) the only way to make auto-imports work was to import each library you need at least once ......