anchor.diff:  get_expectation(ValueSpec, Acc) when is_binary(ValueSpec) ->
       % not a onepanel_parser value spec, used when manually throwing ERR_INVALID_VALUE
       <<Acc/binary, ValueSpec/binary>>.
  -
   
   
   %%--------------------------------------------------------------------
  
positive.code: 
  translate(_Type, #error{} = Error) ->
      try
          #{<<"id">> := Id, <<"description">> := Desc} = describe_common_error(Error),
          {<<"Operation error">>, str_utils:format_bin("~ts: ~ts", [Id, Desc])}
      catch _:_ ->
          ?error("~ts", [format_error(Error)]),
          {<<"Internal Error">>, <<"Server encountered an unexpected error.">>}
  
negative.code: % DO NOT modify this error message as it is used to identify the error in GUI
  translate(_Type, #error{reason = ?ERR_LETSENCRYPT_LIMIT(ErrorURN, Message)}) ->
      {<<"Let's Encrypt Limit Error">>,
          str_utils:format_bin("Let's Encrypt limit error: ~ts: ~ts", [ErrorURN, Message])};
  
  % DO NOT modify this error message as it is used to identify the error in GUI
  translate(_Type, #error{reason = ?ERR_LETSENCRYPT_AUTHORIZATION(Message)}) ->
  