message: chore: require node 8 for samples
diff: "url": "https://github.com/googleapis/nodejs-pubsub.git"
  },
  "engines": {
  - "node": ">=8.0.0"
  + "node": ">=8"
  },
  "scripts": {
  "ava": "ava -T 20s --verbose system-test/*.test.js",
  