Update app.py

app.py

@@ -1,7 +1,7 @@
 import gradio as gr
 
-def plex():
-    return
+def plex(outtxt):
+    return "hi"+outtxt+""
 
 with gr.Blocks() as iface:
     with gr.Row():
@@ -13,6 +13,9 @@ with gr.Blocks() as iface:
                     tab1=gr.Tab()
                 with gr.Row():
                     tab2=gr.Tab()
+    with gr.Row():
+        btn=gr.Button()
+        btn.click(plex,outtxt,tab1)
 
 
 iface.launch()