tsconfig.json

{
  "compilerOptions": {
    "skipLibCheck": true,
    "resolveJsonModule": true,
    "target": "es5",
    "moduleResolution": "node",
    "module": "commonjs",
    "declaration": true,
    "sourceMap": true,
    "downlevelIteration": true,
    "alwaysStrict": true,
    "strict": true,
    "strictNullChecks": true,
    "strictFunctionTypes": true,
    "strictBindCallApply": true,
    "strictPropertyInitialization": true,
    "noStrictGenericChecks": false,
    "noFallthroughCasesInSwitch": true,
    "noImplicitAny": true,
    "useDefineForClassFields": false,
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "allowUmdGlobalAccess": true,
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    "forceConsistentCasingInFileNames": true
  },
  "include": ["packages"],
  "exclude": ["node_modules"],
  "ts-node": {
    "compilerOptions": {
      "module": "CommonJS",
      "resolveJsonModule": true,
      "noImplicitAny": false
    }
  }
}