@values = $session->getfMultipleProperties( $object, \@propNames, $freshness );
The getfMultipleProperties() function is like getMultipleProperties(), but refreshes values that are staler than $freshness seconds and need re-polling. The section “$freshness” on page 73 provides additional information.
The propNames argument must be a reference to an array of property names. For example,
@props = qw(Vendor Model Type); ($v,$m,$t) = $session->getfMultipleProperties($obj, \@props, 30);