C<blessed> returns the name of the package the argument has been
blessed into, or C<undef>.
+=item DOES(ROLE)
+
+C<DOES> returns I<true> if its object claims to perform the role C<ROLE>.
+
+By default, the response to C<DOES> is the same as the response to ISA. For
+more information on C<DOES> and other universal methods, see L<UNIVERSAL>.
+
=item can(METHOD)
X<can>