Question: python def col_sums(lst: List[List[int]]) -> List[int]: ''' Return a new list that contains the sum of each column in lst. All columns in lst are

python

def col_sums(lst: List[List[int]]) -> List[int]: ''' Return a new list that contains the sum of each column in lst. All columns in lst are of the same length.

>>> col_sums([[5, 10, 15], [1, 2, 3]]) [6, 12, 18] '''

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