Part (b) [3 MARKS] Complete the function body according to its docstring description. You will be
marked only on the parts that need to be different from (a).
def count_letter_case_mutate (L):
" (list of list of str) -> None Type
Precondition: each str in L is non-empty and contains only alphabetic characters
Replace each item in L with a two-item tuple in which the first item is
the number of words in the list at the corresponding index of L that start with
a lowercase letter and the second item is the number of words in the list at the
corresponding index of L that start with an uppercase letter
>>> data = [['apple', 'Banana'], ['PeAr'], [], ['PEACH', 'aprICot', 'plum']]
>>> count_letter_case_mutate (data)
>>> data
[(1, 1), (0, 1), (0, 0), (2, 1)]