Update app.py

app.py

@@ -9,6 +9,13 @@ def generate():
 with gr.Blocks() as demo:
     btn = gr.Button("Generate")
     out = gr.Textbox(label="Generation")
+
+    def change_visibility():
+        return {
+            out: gr.update(visible=True)
+        }
+
+    btn.click(fn=change_visibility, outputs=out)
     btn.click(fn=generate, outputs=out)
 
 demo.launch(debug=True)