structuredAttrs is enabled

trying https://registry.npmjs.org/@jridgewell/gen-mapping/-/gen-mapping-0.4.0-beta.0.tgz
  % 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  20201 100  20201   0      0 376.0k      0                              0
100  20201 100  20201   0      0 375.6k      0                              0
100  20201 100  20201   0      0 375.4k      0                              0