structuredAttrs is enabled

trying https://files.pythonhosted.org/packages/aa/70/bb89f807a6a6704bdc4d6f850d5d32954f6c1965e3248e31455defdf2f30/marshmallow-4.2.2-py3-none-any.whl
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100  48454 100  48454   0      0 288.5k      0                              0