 after type discovery is complete. If any observer method of the
 <code>AfterTypeDiscovery</code> event throws an exception, the exception is treated as a definition error by the container.
 </p>
 <p>
 Any observer of this event is permitted to add classes to, or remove classes from, the list of alternatives, list of
 interceptors or list of decorators. The container will use the final values of these lists, after all observers have been
 called, to determine the enabled alternatives, interceptors, and deco