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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 weekend_boxing_day(start_date=None, end_date=None, observance=None):
 """ If boxing day is saturday then Monday 28th is a holiday If boxing day is sunday then Tuesday 28th is a holiday """

    return Holiday(
        "Weekend Boxing Day",
        month=12,
        day=28,
        days_of_week=(MONDAY, TUESDAY),
        start_date=start_date,
        end_date=end_date,
        observance=observance,
    )