tsconfig.json

{
  "compilerOptions": {
    "target": "es5",
    "module": "commonjs",
    "allowJs": true,
    "checkJs": true,
    "declaration": false,
    "sourceMap": false,
    "outDir": "./dist",
    "removeComments": false,
    "strict": false,
    "noImplicitAny": false,
    "strictNullChecks": false,
    "strictFunctionTypes": false,
    "strictBindCallApply": false,
    "strictPropertyInitialization": false,
    "noImplicitThis": false,
    "alwaysStrict": false,
    "noUnusedLocals": false,
    "noUnusedParameters": false,
    "noImplicitReturns": true,
    "noFallthroughCasesInSwitch": true,
    "moduleResolution": "node",
    "types": ["@types/node", "@types/jest"],
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "skipLibCheck": true,
    "forceConsistentCasingInFileNames": true,
    "emitDeclarationOnly": false
  }
}