Get NJ Transit rail vehicles

import { MTA } from "mta-js";
const mta = new MTA({ apiKey: process.env.MTA_API_KEY });
const data = await mta.njTransit.rail.vehicles({ line: "NEC", limit: 5 });

[
  {
    "mode": "nj-transit-rail",
    "route": {
      "id": "<string>",
      "gtfsId": "<string>",
      "shortName": "<string>",
      "longName": "<string>",
      "type": 123,
      "color": "<string>",
      "textColor": "<string>"
    },
    "trainId": "<string>",
    "source": "<string>",
    "vehicleId": "<string>",
    "direction": "<string>",
    "trackCircuitId": "<string>",
    "nextStop": {
      "id": "<string>",
      "name": "<string>",
      "mode": "nj-transit-rail",
      "shortName": "<string>",
      "raw": "<unknown>"
    },
    "lat": 123,
    "lon": 123,
    "departureTime": "<string>",
    "delaySeconds": 123,
    "recordedAt": "<string>",
    "raw": "<unknown>"
  }
]