Add output to show processing

app.py

@@ -65,6 +65,7 @@ def change_index(dataset):
         INDEX, TEXT_LIST = load_faiss_index(dataset)
         PREV_DATASET = dataset
         gr.Info("Done!!")
+    return None
 
 @torch.inference_mode
 def get_emb(text, device="cpu"):
@@ -154,6 +155,7 @@ with gr.Blocks() as demo:
     btn.click(
         fn=change_index,
         inputs=[dataset],
+        outputs=[result_text],
     ).success(
         fn=search_text,
         inputs=[top_k, show_score, numbering_prefix, output_file, query_text],