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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 time_at_shadow_length(day, latitude, multiplier):
 """Compute the time at which an object's shadow is a multiple of its length. Specifically, determine the time the length of the shadow is a multiple of the object's length + the length of the object's shadow at noon This is used in the calculation for Asr time. Hanafi uses a multiplier of 2, and everyone else uses a multiplier of 1 Algorithm taken almost directly from PrayTimes.org code :param day: The day which to compute for :param latitude: The latitude of the place of interest :param: multiplier: The multiplier of the object's length :returns: The floating point time delta between Zuhr and the time at which the lenghth of the shadow is as defined """

    latitude_rad = radians(latitude)
    declination = radians(sun_declination(day))

    angle = arccot(
        multiplier +
        tan(abs(latitude_rad - declination))
    )

    numerator = sin(angle) - sin(latitude_rad)*sin(declination)
    denominator = cos(latitude_rad) * cos(declination)

    return degrees(acos(numerator/denominator)) / 15