This will return a L<Class::MOP::Attribute> for the specified
C<$attribute_name>. If the class does not have the specified
-attribute, it returns C<undef>
+attribute, it returns C<undef>.
+
+NOTE that get_attribute does not search superclasses, for
+that you need to use C<find_attribute_by_name>.
=item B<< $metaclass->has_attribute($attribute_name) >>