Import pandas library

app.py

@@ -2,6 +2,8 @@ import gradio as gr
 from sentence_transformers import SentenceTransformer, util
 import openai
 import os
+import pandas as pd 
+
 os.environ["TOKENIZERS_PARALLELISM"] = "false"
 # Initialize paths and model identifiers for easy configuration and maintenance
 filename = "output_topic_details.txt"  # Path to the file storing chess-specific details