Update main.py

main.py

@@ -77,6 +77,6 @@ async def chat_completions(request: ChatRequest):
 
     async def event_stream():
         async for chunk in async_generator:
-            yield f"data: {json.dumps({'choices': [{'message': {'role': 'assistant', 'content': chunk}}]}})}\n\n"
+            yield f"data: {json.dumps({'choices': [{'message': {'role': 'assistant', 'content': chunk}}]})}\n\n"
 
     return StreamingResponse(event_stream(), media_type="text/event-stream")