add more functions

app.py

@@ -449,8 +449,7 @@ iface = gr.Interface(
         ),
         gr.File(
             label="Or upload a text file with SMILES",
-            file_types=[".txt"],
-            optional=True  # Make file input optional
+            file_types=[".txt"]
         ),
         gr.Checkbox(
             label="Show linear representation"
@@ -482,17 +481,18 @@ iface = gr.Interface(
     examples=[
         [
             "CC(C)C[C@@H]1NC(=O)[C@@H]2CCCN2C(=O)[C@@H](CC(C)C)NC(=O)[C@@H](CC(C)C)N(C)C(=O)[C@H](C)NC(=O)[C@H](Cc2ccccc2)NC1=O",
-            gr.File.update(visible=False),  # Hide file input for examples
+            None,  # Simply use None for file input in examples
             True
         ],
         [
             "CC(C)C[C@@H]1OC(=O)[C@H](C)NC(=O)[C@H](C(C)C)OC(=O)[C@H](C)N(C)C(=O)[C@@H](C)NC(=O)[C@@H](Cc2ccccc2)N(C)C1=O",
-            gr.File.update(visible=False),  # Hide file input for examples
+            None,
             True
         ]
     ],
     flagging_mode="never"
 )
+
 # Launch the app
 if __name__ == "__main__":
     iface.launch()