anchor.diff:      refresh_notify = [] :: [from()],
       buffer = <<>> :: binary(),
       rnrn_pattern :: binary:cp(),
  -    ws_frag = #message{},            % Store previous ws fragmented message
  -    ws_pid :: pid()                  % Cowboy protocol's pid
  +    ws_frag = #message{},            % store previous ws fragmented message
  +    ws_pid :: pid()                  % ws protocol's pid
   }).
   
   
  
positive.code:     end.
  
  
  
  
  
  %% @private
  -spec parse_ws(binary(), #state{}) ->
      gen_server_info(#state{}).
  
  
negative.code: -spec start_refresh(pid(), pos_integer(), term()) ->
      ok | error.
  
  start_refresh(Pid, Secs, Ref) when is_integer(Secs), Secs>0 ->
      case catch gen_server:call(Pid, {start_refresh, Secs, Ref, self()}) of
          ok -> ok;
          _ -> error
      end.
  