code: public static Map<IssueCategoryModel, List<ProblemSummary>> getProblemSummaries(
              GraphContext graphContext,
              Set<ProjectModel> projectModels,
              Set<String> includeTags,
              Set<String> excludeTags)
      {
          return getProblemSummaries(graphContext, projectModels, includeTags, excludeTags, false, false);
      }
docs: Gets lists of {@link ProblemSummary} objects organized by {@link IssueCategoryModel}.