Carpool: Create trip body

trip-body.json

{
  "waypoints": [
    { "cityId": 625144, "stops": [{ "name": "Минский вокзал" }] },
    { "cityId": 625743, "stops": [{ "name": "Лепельский вокзал" }] },
    { "cityId": 620127, "stops": [{ "name": "Витебский вокзал" }] },
    { "cityId": 625665, "stops": [{ "name": "Могилевский вокзал" }] }
  ],
  "legs": [
    { "fromCityId": 625144, "toCityId": 625665, "price": 730 },
    { "fromCityId": 620127, "toCityId": 625665, "price": 310 },
    { "fromCityId": 625144, "toCityId": 625743, "price": 300 },
    { "fromCityId": 625743, "toCityId": 620127, "price": 230 }
  ],
  "departure": "2021-01-15T14:09:00Z",
  "capacity": [{ "type": "passenger", "capacity": 16 }],
  "currency": "RUB",
  "carId": 7,
  "options": { "instantBooking": true }
}