what would the code be for this:

def clean_list(data_list: list, count: int) -> None:

"""Mutate thedata_list so that count elements have been removed from the end.

Preconditions:

- count >= 0

- len(data_list) >= count

>>> data_lst = [[ 23, 29, 30, 32, ], '', '23', '', '29', '', '30' , '','32','']

>>> clean_list(data_lst, 8 )

>>> data_list

[[ 23, 29, 30, 32 ]]

"""