def moogah(a, b):
'''(str, int) -> str'''
def frooble(L):
'''(list of str) -> int
Precondition: L has at least one element.'''
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lst = [’a’, ’b’, ’c’]
\color{black}{\verb|moogah(lst[0], len(lst))|}moogah(lst[0], len(lst))