tsconfig.json

{
  "compilerOptions": {
    "incremental": true,
    "target": "es6",
    "module": "commonjs",
    "moduleResolution": "node",
    "declaration": true,
    "sourceMap": true,
    "outDir": "./lib",
    "strict": true,
    "esModuleInterop": false, // enable if you're having problems with compilation
    "skipLibCheck": true,
    "noUncheckedIndexedAccess": true,
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    "types": ["node", "jest"]
  },
  "include": ["src/**/*.ts", "test/**/*.ts"],
  "exclude": ["node_modules"]
}