add 2nd return variable to upload_file to make clearbutton visible and create reset_buttons (simply changing visibility) that is triggered on c.click

app.py

@@ -133,8 +133,10 @@ def model_call(question, document, answer, client_base_url):
 
 def upload_file(filepath):
     name = Path(filepath).name
-    return gr.UploadButton(visible=False)
+    return [gr.UploadButton(visible=False), gr.ClearButton(visible=True)]
     # return [gr.UploadButton(visible=False), gr.DownloadButton(label=f"Download {name}", value=filepath, visible=True)]
+def reset_buttons():
+    return [gr.UploadButton(visible=True), gr.ClearButton(visible=False)]
 
 # def download_file():
 #     return [gr.UploadButton(visible=True), gr.DownloadButton(visible=False)]
@@ -174,6 +176,7 @@ with gr.Blocks(css=css) as demo:
 
     model_dropdown.change(fn=update_client_base_url, inputs=[model_dropdown], outputs=[base_url_state])
     u.upload(upload_file, u, [u, c])
+    c.click(reset_buttons, None, [u, c])
     # d.click(download_file, None, [u, d])
 
     submit_button.click(fn=model_call, inputs=[question, document, answer, base_url_state], outputs=[reasoning, score])