@types = $session->getAttributeTypes( $class )
The getAttributeTypes() function gets the list of type codes associated with the attribute names returned by getAttributeNames().
The types returned by this call and the names returned by getAttributeNames() are in the same order, such that the type of $property[$n] is given in $type[$n]. The section “$type, @types” on page 72 provides a description of the possible values.
@list = $session->getAttributeTypes( "Router" );