tsconfig.json

{
  "extends": "./node_modules/gts/tsconfig-google.json",
  "compilerOptions": {
    "rootDir": ".",
    "outDir": "build",
    "lib": ["ES2021"],
    "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
    "noImplicitReturns": false,             /* Report error when not all code paths in function return a value. */
    "useUnknownInCatchVariables": false,
    "skipLibCheck": true,                     /* Skip type checking of declaration files. */
    "esModuleInterop": true,                  /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
    "declaration": false,
  },
  "include": [
    "src/**/*.ts",
    "test/**/*.ts"
  ],
  "exclude": ["build/**/*", "node_modules"]
}