{
  // npx -p typescript tsc
  // from: https://www.typescriptlang.org/docs/handbook/declaration-files/dts-from-js.html
  "include": [
    "src/*.js"
  ],
  "compilerOptions": {
    // Tells TypeScript to read JS files, as
    // normally they are ignored as source files
    "allowJs": true,
    // Generate d.ts files
    "declaration": true,
    // This compiler run should only output d.ts files
    "emitDeclarationOnly": true,
    // Types should go into this directory.
    // Removing this would place the .d.ts files
    // next to the .js files
    "outDir": "types",
    // go to js file when using IDE functions like
    // "Go to Definition" in VSCode
    "declarationMap": true
  }
}