Update app.py

app.py

@@ -3,5 +3,14 @@ import gradio as gr
 def greet(name):
     return "Hello " + name + "!!"
 
-demo = gr.Interface(fn=greet, inputs="text", outputs="text")
-demo.launch()
+def greet2(name):
+    return "Hello " + name + "!!!!"
+
+
+hello_world = gr.Interface(fn=greet, inputs="text", outputs="text")
+bye_world = gr.Interface(fn=greet2, inputs="text", outputs="text")
+
+demo = gr.TabbedInterface([hello_world, bye_world], ["Hello World", "Bye World"])
+
+if __name__ == "__main__":
+    demo.launch()