Update app.py

app.py

@@ -196,6 +196,6 @@ with gr.Blocks(theme=gr.themes.Soft(),css=css,js=js) as demo:
         ln = len(result)
         idxs = list(range(ln))
         Pool(ln).imap( _ret, idxs )
-    run_button.click(_rets)
+    run_button.click(fn=_rets)
 
 demo.queue().launch()