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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 datetime_to_jd(date):
 """ Convert a `datetime.datetime` object to Julian Day. Parameters date : `datetime.datetime` instance Returns ------- jd : float Julian day. Examples -------- datetime.datetime(1985, 2, 17, 6, 0) 2446113.75 """

    days = date.day + hmsm_to_days(date.hour,date.minute,date.second,date.microsecond)

    return date_to_jd(date.year,date.month,days)