<p>
 Close client instance and all it's associated resources. Subsequent calls have no effect and are ignored. Once the
 client is closed, invoking any other method on the client instance would result in an <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang" class="externalLink"><code>IllegalStateException</code></a>
 being thrown.
 </p>
 Calling this method effectively invalidates all <a href="W