docs: private static void summarizeGBMModel(ModelSummary summary, hex.gbm.GBM.GBMModel model) {
      // add generic fields such as column names
      summarizeModelCommonFields(summary, model);
  
      summary.model_algorithm = "GBM";
  
      JsonObject all_params = (model.get_params()).toJSON();
      summary.critical_parameters = whitelistJsonObject(all_params, GBM_critical_params);
      summary.secondary_parameters = whitelistJsonObject(all_params, GBM_secondary_params);
      summary.expert_parameters = whitelistJsonObject(all_params, GBM_expert_params);
    }