public GetCampaignActivitiesResponse GetCampaignActivities(GetCampaignActivitiesRequest request)
{
var marshaller = new GetCampaignActivitiesRequestMarshaller();
var unmarshaller = GetCampaignActivitiesResponseUnmarshaller.Instance;
return Invoke<GetCampaignActivitiesRequest,GetCampaignActivitiesResponse>(request, marshaller, unmarshaller);
}