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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def find_last_sublist(list_, sublist):
 """Given a list, find the last occurance of a sublist within it. Returns: Index where the sublist starts, or None if there is no match. """

    for i in reversed(range(len(list_) - len(sublist) + 1)):
        if list_[i] == sublist[0] and list_[i:i + len(sublist)] == sublist:
            return i
    return None