internal/tsconfig.json

{
  "compilerOptions": {
    "strict": true,
    "module": "CommonJS",
    "target": "ES2015",
    "types": [
      "node",
    ],
    "lib": [
      "dom",
      "es5",
      "es2015.core",
      "es2015.collection",
      "es2015.promise",
      // This will need to become es2018.asynciterable when
      // bumping the version of TypeScript in rules_typescript/package.json
      "es2018.asynciterable"
    ]
  },
  // We run the plain tsc compiler so we need to exclude files we don't want it to visit
  "exclude": [
    "**/test_support.ts",
    "**/*_test.ts",
    "*/tests"
  ]
}