Update src/utils.py

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

Author: GabrielBarberini

src/utils.py

@@ -73,7 +73,8 @@ def default(self, o):
                     mutate_self=False,
                 )
         if isinstance(obj, Flight):
-         if isinstance(obj, Flight):
+     if isinstance(obj, Flight):
+         try:
              try:
 -                evaluate_post_process = getattr(obj, '_Flight__evaluate_post_process', None)
                 evaluate_post_process = getattr(obj, '_Flight__evaluate_post_process', None)