tsconfig.json

{
  "compilerOptions": {
    "module": "commonjs",
    "moduleResolution": "node",
    "target": "es5",
    "declaration": false,
    "lib": [
      "es2017"
    ],
    "types": [
      "node"
    ],
    "noImplicitAny": true,
    "strictNullChecks": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "noImplicitUseStrict": false,
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "forceConsistentCasingInFileNames": true,
    "traceResolution": false,
    "listFiles": false,
    "stripInternal": true,
    "skipDefaultLibCheck": true,
    "skipLibCheck": false,
    "pretty": true,
    "noEmitOnError": true
  },
  "include": [
    "lib/**/*.ts",
    "test/**/*.ts"
  ],
  "exclude": [
    "node_modules"
  ]
}