Update app.py

app.py

@@ -275,7 +275,7 @@ def build_date(year, month, day):
 
 def len_validator(text):
     min_tokens = 128  
-    tokenizer = AutoTokenizer('google-bert/bert-base-uncased')
+    tokenizer = AutoTokenizer.from_pretrained('google-bert/bert-base-uncased')
     lengt = len(tokenizer.tokenize(text = text, return_tensors="pt"))
     if  lengt < min_tokens:
         return f"Warning! Input length is {lengt}. Please input a text that is greater than {min_tokens} tokens long. Recommended length {min_tokens*2} tokens."