| Language Version : ||ActionScript 3.0|
| Runtime Versions : ||Flash Player 9, AIR 1.1|
interface defines a marker
Classes that support this interface declare support for event propagation
in a specialized manner.
Classes that implement this interface must dispatch events for each property
of this class and any nested classes publicly exposed as properties.
For those properties that are anonymous (complex and not strongly typed),
implementing classes provide custom support or directly use the
Implementors of this interface should use the
method to construct an
appropriate update event for dispatch.