Update app.py

app.py

@@ -3,5 +3,17 @@ import gradio as gr
 def greet(name):
     return "Hello " + name + "!!"
 
-demo = gr.Interface(fn=greet, inputs="text", outputs="text")
+with demo:
+    gr.Markdown("Flip text or image files using this demo.")
+    with gr.Tabs():
+        with gr.TabItem("Flip Text"):
+            with gr.Row():
+                text_input = gr.Textbox()
+                text_output = gr.Textbox()
+            text_button = gr.Button("Flip")
+        with gr.TabItem("Flip Image"):
+            interface = gr.Interface(fn=greet, inputs="text", outputs="text")
+
+    text_button.click(flip_text, inputs=text_input, outputs=text_output)
+
 demo.launch()