tsconfig.json

{
  "compilerOptions": {
    "baseUrl": ".",
    "paths": { "*": ["types/external/*"] },
    "incremental": true,
    "module": "commonjs",
    // Node.js >= 8 supports 100% of ES2017 (https://node.green/)
    "target": "es2017",
    "lib": [
      "es2017",
      // error Cannot find name 'AsyncIterable'.
      "esnext.asynciterable"
    ],
    "esModuleInterop": true,
    "declaration": true,
    "declarationMap": true,
    "rootDir": "lib",
    "outDir": "dist",
    "sourceMap": true,
    "strict": true,
    "allowSyntheticDefaultImports": true,
    // "typeRoots": ["node_modules/@types", "types/external"],
    "noUnusedLocals": true,
    "importHelpers": true
  },
  "include": ["lib/**/*"],
  "exclude": ["node_modules", "test/**/*.js"],
  // @TODO Remove those when done
  // "files": ["types/custom/index.d.ts"]
}