Update main.py

main.py

@@ -252,7 +252,8 @@ async def chat_completions(request: ChatRequest):
                     image_markdown = f"![image]({chunk.url})"
                     yield f"data: {json.dumps(create_response(image_markdown, request.model))}\n\n"
                 else:
-                    yield f"data: {json.dumps(create_response(chunk + '\nNiansuhAI', request.model))}\n\n"
+                    response_with_footer = f"{chunk}\nNiansuhAI"  # Concatenating here
+                    yield f"data: {json.dumps(create_response(response_with_footer, request.model))}\n\n"
             yield "data: [DONE]\n\n"
 
         return StreamingResponse(generate(), media_type="text/event-stream")