Update app.py

Use gr.TabbedInterface to handle multiple functions

app.py

@@ -183,12 +183,20 @@ def helloWorld(text):
     return f"{text} : hello world"
 
 # Gradio Interface
-iface = gr.Interface(
-    fn=[chatbot, helloWorld],
-    inputs=[gr.File(label="Upload PDF"), gr.Textbox(label="Ask a Question")],
-    outputs=gr.Textbox(label="Answer"),
-    title="PDF Q&A Chatbot (Powered by Together.AI)"
-)
-
+iface = gr.TabbedInterface(
+    [
+        gr.Interface(
+            fn=chatbot,
+            inputs=[gr.File(label="Upload PDF"), gr.Textbox(label="Ask a Question")],
+            outputs=gr.Textbox(label="Answer"),
+            title="PDF Q&A Chatbot (Powered by Together.AI)",
+        ),
+        gr.Interface(
+            fn=helloWorld,
+            inputs="text",
+            outputs="text",
+        )
+    ]
+        
 # Launch Gradio app
 iface.launch()