ss="block">Register asynchronous processing lifecycle callback classes to receive lifecycle
 events for the asynchronous response based on the implemented callback interfaces.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>callback</code> - callback class.</dd>
<dd><code>callbacks</code> - additional callback classes.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>map of registered classes and the callback interfaces registered for each class.
         If a callback c