docs: private InstalledPlugin[] listInstalledPlugins() {
      Profiler profiler = Profiler.create(LOG).startInfo("Load plugins index");
      GetRequest getRequest = new GetRequest(PLUGINS_WS_URL);
      InstalledPlugins installedPlugins;
      try (Reader reader = wsClient.call(getRequest).contentReader()) {
        installedPlugins = new Gson().fromJson(reader, InstalledPlugins.class);
      } catch (Exception e) {
        throw new IllegalStateException("Fail to parse response of " + PLUGINS_WS_URL, e);
      }
  
      profiler.stopInfo();
      return installedPlugins.plugins;
    }