anchor.diff:    case fetch_map(Conn, Bucket, sumo_utils:to_bin(Id), Opts) of
       {ok, RMap} ->
         {ok, rmap_to_doc(DocName, RMap), State};
  -    {error, {notfound, _}} ->
  +    {error, {notfound, _Type = map}} ->
         {error, notfound, State};
       {error, Error} ->
         {error, Error, State}
  
positive.code:     fetch_docs(DocName, Conn, Bucket, Kst, Opts) ++ Acc
    end,
    case stream_keys(Conn, Bucket, Get, []) of
      {ok, Docs} -> {ok, Docs, State};
      {_, Docs}  -> {error, Docs, State}
    end.
  
  -spec find_all(DocName, SortFields, Limit, Offset, State) -> Response when
  
negative.code:     Acc + length(Kst)
    end,
    case stream_keys(Conn, Bucket, Del, 0) of
      {ok, Count}            -> {ok, Count, State};
      {error, Reason, Count} -> {error, {stream_keys, Reason, Count}, State}
    end.
  
  -spec find_all(DocName, State) -> Response when
  