Update app.py

app.py

@@ -60,7 +60,7 @@ def get_file(source_documents):
 
 def chat_query(question, history):
 
-    result = {}
+    
     query = f"""As an experienced Electrical Engineer, please provide an elaborate, precise, and pointwise answer politely to the question: {question}. 
               Ensure that your response is detailed, accurate, and addresses each aspect of the question thoroughly. 
               If the context of the question doesn't align with the chat history, please provide your response in a fresh manner. """