tsconfig.json

{
  "compilerOptions": {
    "lib": ["esnext"],
    "module": "esnext",
    "moduleResolution": "node",
    "target": "esnext",
    "types": ["@types/jest", "@types/node"],
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "noEmit": true,
    "resolveJsonModule": true
  },
  "include": ["src"],
  "exclude": ["node_modules"]
}