Get NYC Ferry stops for a route

import { MTA } from "mta-js";
const mta = new MTA({ apiKey: process.env.MTA_API_KEY });
const data = await mta.nycFerry.routeStops({ route: "ER" });

{
  "route": {
    "id": "<string>",
    "mode": "nyc-ferry",
    "shortName": "<string>",
    "longName": "<string>",
    "type": 123,
    "color": "<string>",
    "textColor": "<string>"
  },
  "mode": "nyc-ferry",
  "directions": [
    {
      "direction": "<string>",
      "stops": [
        {
          "id": "<string>",
          "name": "<string>",
          "lat": 123,
          "lon": 123,
          "mode": "nyc-ferry",
          "parentId": "<string>"
        }
      ],
      "headsigns": [
        "<string>"
      ]
    }
  ]
}