Update app.py

app.py

@@ -69,11 +69,13 @@ with demo:
             </p>
         </div>
         """)
-    with gr.Column():
-        with gr.Row().style(equal_height=True):
-            gall = gr.Gallery(elem_id='gallery').style(grid=[4])
-        greet_btn = gr.Button("Generate")
-        greet_btn.click(fn=ex, outputs=gall)
+    with gr.Tabs():
+        with gr.TabItem("V1"):
+            with gr.Column():
+                with gr.Row().style(equal_height=True):
+                    gall = gr.Gallery(elem_id='gallery').style(grid=[4])
+                greet_btn = gr.Button("Generate")
+                greet_btn.click(fn=ex, outputs=gall)
     gr.HTML(
         """
         <div class="footer">