Fix for Bettertransformer error

app.py

@@ -460,8 +460,8 @@ async def summarize(descriptions: list, runtime="normal"):
     # Define the summarizer model and tokenizer
     if runtime == "normal":
         tokenizer = summary_tokenizer_normal
-        model = summary_model_normal
-        model = BetterTransformer.transform(model)
+        normal_model = summary_model_normal
+        model = BetterTransformer.transform(normal_model)
     elif runtime == "onnxruntime":
         tokenizer = summary_tokenizer_onnx
         model = summary_model_onnx