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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 date_to_json(pydate, manager):
 """Serialize a Python date object. Attributes of this dictionary are to be passed to the JavaScript Date constructor. """

    if pydate is None:
        return None
    else:
        return dict(
            year=pydate.year,
            month=pydate.month - 1,  # Months are 0-based indices in JS
            date=pydate.day
        )