tsconfig.json

{
  "compilerOptions": {
    "module": "ES2015",
    "moduleResolution": "node",
    "declaration": true,
    "esModuleInterop": true,
    "target": "ES2017",
    "lib": ["ES2017", "ESNext.BigInt"],
    "sourceMap": true,
    "noUnusedLocals": true,
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noUnusedParameters": false,
    "alwaysStrict": true,
    "strictNullChecks": true,
    "pretty": true,
    "allowUnreachableCode": false,
    "incremental": true,
    "newLine": "LF"
  }
}