[Update]sett CheckboxGroup value string

app.py

@@ -63,7 +63,7 @@ def restart_space():
 # ) = get_evaluation_queue_df(EVAL_REQUESTS_PATH, EVAL_COLS)
 
 raw_data = dummydf()
-methods = list(set(str(raw_data['Method'])))
+methods = list(set(raw_data['Method']))
 metrics = ["Chruch","Parachute","Tench","Garbage Turch","Van Gogh","Violence","Illegal Activity","Nudity"]
 
 def update_table(
@@ -130,6 +130,7 @@ with demo:
                     with gr.Row():
                         model1_column = gr.CheckboxGroup(
                         label="Unlearning Methods",
+                        value = str,
                         choices=methods,
                         interactive=True,
                         elem_id="column-select",