$ diff llil.py llil2.py 
53c53
< def collect( data_list :list ) ->dict[ str, int ]:
---
> def collect( data_list :list ) ->dict:
87c87
< def process( cat_count :dict[ str, int ] ) ->Generator[ str, None, None ]:
---
> def process( cat_count :dict ) ->Generator:
110c110
< def sort_via_cmp_to_key( cat_count :dict[ str, int ] ) ->list[ str ]:
---
> def sort_via_cmp_to_key( cat_count :dict ) ->list: