Update excel_chat.py

excel_chat.py

@@ -59,7 +59,7 @@ def ask_llm(query, user_input, client_index, user, keys):
 
     elif client_index == "Groq (mixtral)":
         try:
-            client = Groq(api_key= os.getenv(keys[0])
+            client = Groq(api_key= os.getenv(keys[0]))
             chat_completion = client.chat.completions.create(
                 messages=messages,
                 model='mixtral-8x7b-32768',