update model code

app.py

@@ -233,7 +233,7 @@ def predict():
             tempfile.gettempdir(), file.filename.lower())
         image.save(image_save_path)
     a, b = model.check_file(temp_path)[0]
-    return jsonify({"message": a, confidence: b, "saved_path": image_save_path})
+    return jsonify({"message": a, "confidence": b, "saved_path": image_save_path})
 
 
 if __name__ == "__main__":