func (client *SIRIClient) VehicleMonitoring(request *siri.SIRIGetVehicleMonitoringRequest) (*sxml.XMLVehicleMonitoringResponse, error) {
    node, err := client.prepareAndSendRequest(siriClientArguments{
        request:           request,
        expectedResponses: []string{"GetVehicleMonitoringResponse"},
        acceptGzip:        true,