structuredAttrs is enabled

trying https://registry.npmjs.org/prosemirror-schema-basic/-/prosemirror-schema-basic-1.2.4.tgz
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100   7623 100   7623   0      0 162.0k      0                              0