Update app.py

app.py

@@ -5,6 +5,19 @@ gr.HTML("Omdena AI Chatbot For Mental Health and Well Being")
 chatbot = gr.Chatbot()
 chat = ChatWrapper()
 
+class ChatWrapper:
+
+    def __call__(
+        self, inp: str, history: str, chain
+    ):
+        """Execute the chat functionality."""
+                
+    output = chain({"question": inp, "chat_history": history})["answer"]        
+    history.append((inp, output))
+        
+    return history, history
+
+
 block = gr.Blocks(css=".gradio-container {background-color: gray}")
 
 with block: