Cannot import `custom-electron-titlebar/main` using TypeScript's `import`

I can’t import something from custom-electron-titlebar/main using TypeScript’s import

import { setupTitlebar, attachTitlebarToWindow } from "custom-electron-titlebar/main";

Cannot find module 'custom-electron-titlebar/main' or its corresponding type declarations.

[ErrorGamer2000]

The package is missing dist/main.d.ts. Temporary fix is to put this in a .d.ts:

import type cetMain from "custom-electron-titlebar/dist/main/main";

declare module "custom-electron-titlebar/main" {
  const exports: cetMain;
  export default exports;
}

[DerGoogler]

import it’s not from TypeScript. It’s from ES6-Syntax.