code: public GitLabApiForm getQueryParams(int page, int perPage) {
          return (getQueryParams()
                  .withParam(Constants.PAGE_PARAM, page)
                  .withParam(Constants.PER_PAGE_PARAM, perPage));
      }
docs: Get the query params specified by this filter.
  
  @param page specifies the page number
  @param perPage specifies the number of items per page
  @return a GitLabApiForm instance holding the query parameters for this ProjectFilter instance