fun({Doc}) ->
  DocType = couch_util:get_value(<<"type">>, Doc),
  L = [1, 2, 3, 4],
  M = #{<<"id">> => <<"1234">>, <<"brand">> => <<"value one">>, <<"a">> => <<"1">>},
  case DocType of
    <<"installedbaselocation">> ->
      DocInstalledbase = couch_util:get_value(<<"installedbase">>, Doc),
      lists:foreach(fun(E) ->
        Id = 1, % lists:last(<<"id">>, tuple_to_list(E)),
        Emit(Id, E)
      end, DocInstalledbase);
    _ -> false
  end
end.