Update demos/musicgen_colab.py

demos/musicgen_colab.py

@@ -210,7 +210,7 @@ class Predictor:
             self.current_task_id += 1
             task = (self.current_task_id, text, melody, duration, use_diffusion, gen_params)
             self.task_queue.put(task)
-            return self.current_task_id
+            return self.current_task_id, (None, None)
 
     def get_result(self, task_id):
         """Retrieves the result of a prediction task."""