Add DuplicateButton

app.py

@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 
+import os
 import random
 
 import gradio as gr
@@ -129,6 +130,12 @@ def run(
 
 with gr.Blocks() as demo:
     gr.Markdown(DESCRIPTION)
+    gr.DuplicateButton(
+        value="Duplicate Space for private use",
+        elem_id="duplicate-button",
+        visible=os.getenv("SHOW_DUPLICATE_BUTTON") == "1",
+    )
+
     with gr.Row():
         with gr.Column():
             with gr.Group():