{
  "compilerOptions": {
    "noImplicitThis": true,
    "strictNullChecks": true,
    "alwaysStrict": true,
    "target": "es6",
    "module": "es6",
    "moduleResolution": "node",
    "declaration": true,
    "outDir": "./lib",
    "lib": ["es6", "dom", "es2017"] // is all necessary?
  }
}