index.js

const fo = async ({stuff, userId}) => {
    await new Promise(resolve => {
        setTimeout(() => resolve(), 500);
    });
    console.log(stuff, userId);
};

fo({stuff: "a", userId: "b"});

package.json

{
  "babel": {
    "env": {
      "development": {
        "presets": [
          ["env",
          {
            "targets": {
              "node": 4.3
            }
          }]
        ]
      }
    }
  },
  "scripts": {
    "start": "babel-node ."
  },
  "dependencies": {
    "babel-cli": "^6.23.0",
    "babel-preset-env": "^1.1.10"
  }
}