{
  "extends": "../../config/tsconfig.base.json",
  "compilerOptions": {
    "rootDir": "src",
    "outDir": "lib",
    "lib": ["es6", "dom", "es2017.object"]
  },
  "include": ["src/**/*.ts"],
  "exclude": ["src/**/__tests__/*.ts"]
}

{
  "extends": "../../config/tsconfig.base.json",
  "compilerOptions": {
    "rootDir": "src",
    "outDir": "lib",
    "lib": ["es6", "dom", "es7"]
  },
  "include": ["src/**/*.ts"],
  "exclude": ["src/**/__tests__/*.ts"]
}

Add `es7` lib to the typescript config
Add `es7` lib to the typescript config

We're using a few es7 level functions, like
`Array.prototype.includes`.
