fix code5t error

app.py

@@ -1,7 +1,7 @@
 # app.py - CodeLab Stage 3: Semantic Analysis - Fixed Version
 import gradio as gr
 import torch
-from transformers import AutoTokenizer, AutoModel, T5ForConditionalGeneration, T5Tokenizer
+from transformers import AutoTokenizer, AutoModel, T5ForConditionalGeneration
 import json
 import re
 import ast
@@ -25,10 +25,10 @@ class SemanticAnalyzer:
             logger.info("📖 Loading CodeBERT...")
             self.codebert_tokenizer = AutoTokenizer.from_pretrained("microsoft/codebert-base")
             self.codebert_model = AutoModel.from_pretrained("microsoft/codebert-base")
-            
+
             # CodeT5 for code analysis and generation
             logger.info("🔧 Loading CodeT5...")
-            self.codet5_tokenizer = T5Tokenizer.from_pretrained("Salesforce/codet5-base")
+            self.codet5_tokenizer = AutoTokenizer.from_pretrained("Salesforce/codet5-base")  # ✅
             self.codet5_model = T5ForConditionalGeneration.from_pretrained("Salesforce/codet5-base")
             
             # Set models to eval mode for inference