def get_column_sum(index: int, stations: List["Station"]) -> int:     """Return the sum of the values at the given index from each inner list     of stations.     Precondition: the items in stations at the position                   that index refers to are ints.     >>> get_column_sum(BIKES_AVAILABLE, SAMPLE_STATIONS)     23     >>> get_column_sum(DOCKS_AVAILABLE, SAMPLE_STATIONS)     34     """

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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def get_column_sum(index: int, stations: List["Station"]) -> int:
    """Return the sum of the values at the given index from each inner list
    of stations.

    Precondition: the items in stations at the position
                  that index refers to are ints.

    >>> get_column_sum(BIKES_AVAILABLE, SAMPLE_STATIONS)
    23
    >>> get_column_sum(DOCKS_AVAILABLE, SAMPLE_STATIONS)
    34
    """

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