def METHOD_NAME(dt):
    """
    Coarsens a "last active" time to the accuracy we use for last active times, currently to the last hour, e.g. if the current time is 27th June 2021, 16:53 UTC, this returns 27th June 2021, 16:00 UTC
    """
    return dt.replace(minute=0, second=0, microsecond=0)