Update app.py

app.py

@@ -55,12 +55,12 @@ def model_response(message, history):
         #print(f"t2 {message}")
 
         if message.get("role") == "user" :
-            formatted_history.append({
+            gemini_history.append({
             "role": "user",
             "parts": [message.get("content", "")]
             })
         elif message.get("role") == "assistant" :
-            formatted_history.append({
+            gemini_history.append({
             "role": "model",
             "parts": [message.get("content", "")]
             })