Updated app.py

app.py

@@ -165,8 +165,6 @@ References:
 """
 GEMINI_API_KEY_NIGHTLY = os.getenv("GEMINI_API_KEY_NIGHTLY")
 model_nightly_name = "gemini-1.5-flash"
-model_nightly = genai.GenerativeModel(model_nightly_name, api_key=GEMINI_API_KEY_NIGHTLY)
-chat = model_nightly.start_chat(history=[])
 
 def transform_history(history):
     new_history = []
@@ -176,7 +174,11 @@ def transform_history(history):
     return new_history
 
 def response(message, history):
+    genai.configure(api_key=GEMINI_API_KEY_NIGHTLY)
+    model_nightly = genai.GenerativeModel(model_nightly_name)
+    
     global chat
+    chat = model_nightly.start_chat(history=[])
     chat.history = transform_history(history)
     response = chat.send_message(message)
     response.resolve()