FIX 'NoneType' object has no attribute 'isalpha' (#2440)

passerbya

2025-03-20 5ee2f382b32c5c0beaa1c133b466a100c6fb7ebc

 fun_text_processing/inverse_text_normalization/vi/utils.py

@@ -1,5 +1,3 @@


import os