Update app.py

app.py

@@ -42,4 +42,7 @@ with gr.Blocks() as demo:
 
     output_text = gr.Textbox(label="Summary", lines=6)
 
-    summarize_button.click(summarize
+    summarize_button.click(summarize_text, inputs=[text_input, summary_length], outputs=output_text)
+
+# Launch Gradio App
+demo.launch()