code: public Optional<Plugin> show(long pluginId, boolean detailed)
      {
          QueryParameterList queryParams = new QueryParameterList();
          queryParams.add("detailed", Boolean.toString(detailed));
          return HTTP.GET(String.format("/v2/plugins/%d.json", pluginId), null, queryParams, PLUGIN);
      }
docs: Returns the plugin for the given plugin id.
  @param pluginId The id for the plugin to return
  @param detailed <CODE>true</CODE> if the details of the plugin should be included
  @return The plugin