Update app.py

app.py

@@ -118,7 +118,7 @@ def generate(model):
     if not model_data:
         return jsonify({"error": "Model not found"}), 404
         
-    speaker_ids = { id: speaker for id, speaker in model_data["speaker_ids"].items() }
+    speaker_ids = { str(id): speaker for speaker, id in model_data["speaker_ids"].items() }
     
     if not speaker:
         if speaker_id is not None: