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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_orientation(strategy, **kwargs):
 """ Determine a PV system's surface tilt and surface azimuth using a named strategy. Parameters strategy: str The orientation strategy. Allowed strategies include 'flat', 'south_at_latitude_tilt'. **kwargs: Strategy-dependent keyword arguments. See code for details. Returns ------- surface_tilt, surface_azimuth """


    if strategy == 'south_at_latitude_tilt':
        surface_azimuth = 180
        surface_tilt = kwargs['latitude']
    elif strategy == 'flat':
        surface_azimuth = 180
        surface_tilt = 0
    else:
        raise ValueError('invalid orientation strategy. strategy must '
                         'be one of south_at_latitude, flat,')

    return surface_tilt, surface_azimuth