structuredAttrs is enabled

trying https://files.pythonhosted.org/packages/6a/fd/6adabd4f6d5e686f97dd02ce7fce3fe4cf672cbac36b8f67ff4040e8ad8b/msgpack-1.2.1-cp312-cp312-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100 410.1k 100 410.1k   0      0  7.12M      0                              0