How to specify the bus number when building a route on the Ya.Map API?

Question

Yandex maps

Hello.
Is it possible to manually specify the bus number when building a route through the API on Ya.Map? Maybe there is a parameter or some kind of option. I didn't find it in the documentation.
I build the route like this:

multiRoute = new ymaps.multiRouter.MultiRoute({
                referencePoints: [
                    [55.611024, 37.287100],
                    [55.621723, 37.421927],
                ],
                params: {
                    routingMode: 'masstransit'
                }
            }, {
                wayPointVisible:false,
                routeActiveMarkerVisible: false,
                boundsAutoApply: true,
            });
myMap.geoObjects.add(multiRoute);