code: private Response serveOneOrAll(Map<String, Model> modelsMap) {
      // returns empty sets if !this.find_compatible_frames
      Pair<Map<String, Frame>, Map<String, Set<String>>> frames_info = fetchFrames();
      Map<String, Frame> all_frames = frames_info.getFirst();
      Map<String, Set<String>> all_frames_cols = frames_info.getSecond();
  
      Map<String, ModelSummary> modelSummaries = Models.generateModelSummaries(null, modelsMap, find_compatible_frames, all_frames, all_frames_cols);
  
      Map resultsMap = new LinkedHashMap();
      resultsMap.put("models", modelSummaries);
  
      // If find_compatible_frames then include a map of the Frame summaries.  Should we put this on a separate switch?
      if (this.find_compatible_frames) {
        Set<String> all_referenced_frames = new TreeSet<String>();
  
        for (Map.Entry<String, ModelSummary> entry: modelSummaries.entrySet()) {
          ModelSummary summary = entry.getValue();
          all_referenced_frames.addAll(summary.compatible_frames);
        }
  
        Map<String, FrameSummary> frameSummaries = Frames.generateFrameSummaries(all_referenced_frames, all_frames, false, null, null);
        resultsMap.put("frames", frameSummaries);
      }
  
      // TODO: temporary hack to get things going
      String json = gson.toJson(resultsMap);
  
      JsonObject result = gson.fromJson(json, JsonElement.class).getAsJsonObject();
      return Response.done(result);
    }
docs: Fetch all the Models from the KV store, sumamrize and enhance them, and return a map of them.