<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">\tl_new:N
  \g_description_tl  % warning on this line
\box_new:N
  \l__description_box  % warning on this line
\int_const:Nn
  \c_description  % warning on this line
  { 123 }
</pre></body></html>