def __init__(self, axis, unit=None, epoch=None):
super(GPSScale, self).__init__(unit=unit, epoch=epoch)<EOL>self.axis = axis<EOL>getattr(axis.axes, '<STR_LIT>'.format(axis.axis_name))(<NUM_LIT:0>)<EOL>
unit:
    either name (`str`) or scale (float in seconds)