tsconfig.json

{
  "compilerOptions": {
    "strict": true,
    "noImplicitAny": false /* required for js files */,
    "strictNullChecks": false /* required for js files */,
    "outDir": "./dist",
    "target": "es2018",
    "module": "commonjs",
    "sourceMap": true,
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "resolveJsonModule": false,
    "noUnusedLocals": true,
    "noImplicitOverride": true,
    "experimentalDecorators": true,
    "useUnknownInCatchVariables": false /* we aren't prepared for enabling this by default since ts 4.4*/,
    "lib": ["es2018"],
    "types": ["node", "jest", "jest-extended"],
    "allowJs": true,
    "checkJs": true
  },
  "exclude": [
    "node_modules",
    "./.cache",
    "./dist",
    "**/__mocks__/*",
    "bin",
    "coverage",
    "config.js",
    "tmp"
  ]
}