client.gati.track_fleet(
    updates=[
        {
            "vehicle_id": "v1",
            "location": {"lat": 12.9450, "lng": 77.6100},
            "speed_kmh": 35,
            "heading": 90,
            "status": "moving"
        },
        {
            "vehicle_id": "v2",
            "location": {"lat": 12.9600, "lng": 77.7200},
            "speed_kmh": 0,
            "status": "stopped"
        }
    ]
)

{
  "processed": 2,
  "vehicles": [
    {
      "vehicle_id": "v1",
      "status": "moving",
      "current_route": "opt_abc123",
      "next_stop": {
        "order_id": "order_5",
        "eta": "2026-02-01T11:15:00Z",
        "distance_km": 2.3
      }
    },
    {
      "vehicle_id": "v2",
      "status": "stopped",
      "stopped_duration_min": 12,
      "current_stop": {
        "order_id": "order_8",
        "arrived_at": "2026-02-01T11:03:00Z"
      }
    }
  ]
}