\end{describe}
\begin{describe}{fun}
+ {select-minimal-class-property
+ \=@<supers> @<key> @<order> @<default> @<what> \\
+ \>\&key :present :allow-empty
+ \nlret @<object>}
+\end{describe}
+
+\begin{describe}{fun}
{sod-subclass-p @<class-a> @<class-b> @> @<generalized-boolean>}
\end{describe}