code: private void addQueryParams(final Request request) {
          if (activityName != null) {
              request.addQueryParam("ActivityName", activityName);
          }
  
          if (activitySid != null) {
              request.addQueryParam("ActivitySid", activitySid);
          }
  
          if (available != null) {
              request.addQueryParam("Available", available);
          }
  
          if (friendlyName != null) {
              request.addQueryParam("FriendlyName", friendlyName);
          }
  
          if (targetWorkersExpression != null) {
              request.addQueryParam("TargetWorkersExpression", targetWorkersExpression);
          }
  
          if (taskQueueName != null) {
              request.addQueryParam("TaskQueueName", taskQueueName);
          }
  
          if (taskQueueSid != null) {
              request.addQueryParam("TaskQueueSid", taskQueueSid);
          }
  
          if (getPageSize() != null) {
              request.addQueryParam("PageSize", Integer.toString(getPageSize()));
          }
      }
docs: Add the requested query string arguments to the Request.
  
  @param request Request to add query string arguments to