check for attribute before attempting access

Signed-off-by: Jeffrey Martin <[email protected]>

Author: jmartin-tech

garak/generators/huggingface.py

@@ -379,7 +379,7 @@ def _load_client(self):
         if not hasattr(self, "deprefix_prompt"):
             self.deprefix_prompt = self.name in models_to_deprefix
 
-        if self.config.tokenizer_class:
+        if hasattr(self.config, "tokenizer_class"):
             self.tokenizer = transformers.AutoTokenizer.from_pretrained(
                 self.config.tokenizer_class
             )