Update app.py

app.py

@@ -358,7 +358,8 @@ with gr.Blocks() as gradio_app:
 
   
   smile = gr.Textbox(label="SMILES for hit expansion")
-  
+  percent_mask = gr.Radio(choices = [0.10, 0.15, 0.20],
+                            label="Fraction of hit molecule to mask.", value = 0.15,interactive=True)
 
   with gr.Row():
     mask_btn = gr.Button("Generate analogues with Mask-filling.")