structuredAttrs is enabled

trying https://files.pythonhosted.org/packages/3e/38/7859ff46355f76f8d19459005ca000b6e7012f2f1ca597746cbcd1fbfe5e/antlr4-python3-runtime-4.9.3.tar.gz
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed

  0      0   0      0   0      0      0      0                              0
100 114.2k 100 114.2k   0      0  7.83M      0                              0
100 114.2k 100 114.2k   0      0  7.80M      0                              0
100 114.2k 100 114.2k   0      0  7.76M      0                              0