structuredAttrs is enabled

trying https://github.com/ray-x/lsp_signature.nvim/archive/b7ace9ddb1640ce266012a45a672dfdaedfa5ec6.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  37468   0  37468   0      0  80594      0                              0
unpacking source archive /build/download.tar.gz