tsconfig.json

{
  "compilerOptions": {
    "moduleResolution": "node",
    "target": "ES2019",
    "module": "commonjs",
    "declaration": true,
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    "esModuleInterop": true,
    "preserveConstEnums": true,
    "allowSyntheticDefaultImports": true,
    //"noImplicitAny": false,
    //"strictNullChecks": false,
    //"noImplicitThis": true,
    //"noUnusedLocals": false,
    //"noUnusedParameters": false,
    //"noImplicitReturns": true,
    //"noFallthroughCasesInSwitch": false,
    //"strictPropertyInitialization": false,
    "sourceMap": true,
    "lib": ["ESNext"],
    "outDir": "dist",
    "declarationDir": "dist"
  },
  "exclude": ["node_modules", "dist"]
  // "exclude": ["node_modules", "**/*.spec.ts"]
}