Update nlp.py

nlp.py

@@ -1,6 +1,5 @@
 import pandas as pd
 import numpy as np
-from transformers import AutoTokenizer, AutoModelForSequenceClassification
 import torch
 from tqdm import tqdm
 import re
@@ -8,6 +7,7 @@ import os
 import json
 from datetime import datetime
 from fastapi import UploadFile, File
+from io import StringIO
 
 def clean_kakao_message(text):
     # Remove timestamps, system messages, etc.