structuredAttrs is enabled

trying https://files.pythonhosted.org/packages/3e/b9/3766cc361d93edb2ce81e2e1f87dd98f314d7d513877a342d31b30741680/pypng-0.20220715.0-py3-none-any.whl
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100  58057 100  58057   0      0  1.09M      0                              0