rMethodConfigurator.html" title="type parameter in ObserverMethodConfigurator">T</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#async(boolean)">async</a></span>&#8203;(boolean&nbsp;async)</code></th>
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<div class="block">Allows modification of the asynchronous status of the observer to build.</div>
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<td class="colFirst"><code><a href="ObserverMethodConfigurator.html" title="interface in jakarta.en