Update deepgram/clients/speak/v1/websocket/client.py

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

Author: davidvonthenen

deepgram/clients/speak/v1/websocket/client.py

@@ -604,7 +604,7 @@ def wait_for_complete(self):
 
         if self._speaker is None:
             self._logger.error("speaker is None. Return immediately")
-            return
+            raise DeepgramError("Speaker is not initialized")
 
         self._speaker.wait_for_complete()
         self._logger.notice("wait_for_complete succeeded")