* Retrieves the list of installed plugins.
     *
     * @return JSON response containing installed plugin list
     */
    // GET /api/admin/plugin/installed
    @Execute
    public JsonResponse<ApiResult> get$installed() {
        final List<Map<String, String>> list = getAllInstalledArtifacts();
        return asJson(new ApiResult.ApiPluginResponse().plugins(list).status(ApiResult.Status.OK).result());
    }

    /**