Update app.py

app.py

@@ -20,7 +20,7 @@ def main():
             btn = gr.Button("Generate", variant="primary")
             clear_btn = gr.Button("Clear")
         btn.click(generate, [text, length], [text])
-        clear_btn.click(gr.update(value=""), [text], [text])
+        clear_btn.click(gr.update(""), [], [text])
     demo.queue().launch(debug=True)
 
 if __name__ == "__main__":