text: public virtual GetCampaignActivitiesResponse GetCampaignActivities(GetCampaignActivitiesRequest request){var options = new InvokeOptions();options.RequestMarshaller = GetCampaignActivitiesRequestMarshaller.Instance;options.ResponseUnmarshaller = GetCampaignActivitiesResponseUnmarshaller.Instance;return Invoke<GetCampaignActivitiesResponse>(request, options);}