Update app.py

app.py

@@ -56,6 +56,6 @@ with gr.Blocks(
         out = gr.Markdown()
 
     btn.click(fn=pdfSummarizer, inputs=[api_key, pdf_file, summary_type], outputs=out)
-    clear_btn.click(lambda: (None,None,None,""),outputs=[api_key, pdf_file, summary_type, out],queue=False)
+    clear_btn.click(lambda: (None,None,None,""),inputs=[],outputs=[api_key, pdf_file, summary_type, out],queue=False)
 
 app.launch()