anchor.diff:  %% {@link gui_route_plugin_behaviour} callback public_rpc_backend/0
   %% @end
   %%--------------------------------------------------------------------
  +-spec public_rpc_backend() -> no_return().
   public_rpc_backend() -> error(unimplemented).
   
   
  
positive.code: %% {@link gui_route_plugin_behaviour} callback get_session_details/0
  %% @end
  %%--------------------------------------------------------------------
  -spec session_details() ->
      {ok, proplists:proplist()} | gui_error:error_result().
  session_details() ->
      error(unimplemented).
  
  
negative.code: %% {@link gui_route_plugin_behaviour} callback private_rpc_backend/0
  %% @end
  %%--------------------------------------------------------------------
  -spec private_rpc_backend() -> no_return().
  private_rpc_backend() -> error(unimplemented).
  
  
  