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

passerbya

2025-03-20 5ee2f382b32c5c0beaa1c133b466a100c6fb7ebc

1
2
3
from fun_text_processing.text_normalization.en.taggers.tokenize_and_classify import ClassifyFst
from fun_text_processing.text_normalization.en.verbalizers.verbalize import VerbalizeFst
from fun_text_processing.text_normalization.en.verbalizers.verbalize_final import VerbalizeFinalFst