tsconfig.json

{
  "compilerOptions": {
    "outDir": "./dist/",
    "sourceMap": true,
    "noImplicitAny": true,
    "module": "commonjs",
    "target": "es5",
    "declaration": true,
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "strictNullChecks": true,
    "noEmit": true
  },
  "include": [
    "src/**/*"
  ]
}