anchor.diff:      end)).
   
   
  +-spec on_helper_changed(StorageId :: storage:id()) -> ok.
  +on_helper_changed(StorageId) ->
  +    fslogic_event_emitter:emit_helper_params_changed(StorageId).
   %%--------------------------------------------------------------------
   %% @private
   %% @doc
  
positive.code:     case update_helper(StorageId, HelperName, UpdateFun) of
          ok ->
              rtransfer_put_storage(StorageId),
              fslogic_event_emitter:emit_helper_params_changed(StorageId);
          Error ->
              Error
      end.
  
negative.code: update_admin_ctx(StorageId, HelperName, Changes) when is_map(Changes) ->
      UpdateFun = fun(Helper) -> helper:update_admin_ctx(Helper, Changes) end,
      case update_helper(StorageId, HelperName, UpdateFun) of
          ok -> on_helper_changed(StorageId);
          Error -> Error
      end.
  
  