tsconfig.json

{
  "compilerOptions": {
    "target": "es2018",
    "lib": ["dom", "dom.iterable", "esnext", "ESNext.AsyncIterable"],
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    "allowJs": true,
    "skipLibCheck": true,
    "strict": true,
    "forceConsistentCasingInFileNames": true,
    "noEmit": true,
    "incremental": true,
    "esModuleInterop": true,
    "module": "commonjs",
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "jsx": "preserve",
    "strictPropertyInitialization": false,
    "typeRoots": ["./src/types.d.ts"]
  },
  "include": ["**/*.ts"],
  "exclude": ["node_modules"],
  "ts-node": {
    "files": true
  },
  "files": ["src/index.ts", "src/types.d.ts"]
}