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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 get_middle_point(lon1, lat1, lon2, lat2):
 """ Given two points return the point exactly in the middle lying on the same great circle arc. Parameters are point coordinates in degrees. :returns: Tuple of longitude and latitude of the point in the middle. """

    if lon1 == lon2 and lat1 == lat2:
        return lon1, lat1
    dist = geodetic.geodetic_distance(lon1, lat1, lon2, lat2)
    azimuth = geodetic.azimuth(lon1, lat1, lon2, lat2)
    return geodetic.point_at(lon1, lat1, azimuth, dist / 2.0)