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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 plot(self, **kwds):

 r"""The plotting function for MOT fields."""

        plo = self.lx.plot(dist_to_center=3, **kwds)
        plo += self.ly.plot(dist_to_center=3, **kwds)
        plo += self.lz.plot(dist_to_center=3, **kwds)
        plo += self.lx_r.plot(dist_to_center=3, **kwds)
        plo += self.ly_r.plot(dist_to_center=3, **kwds)
        plo += self.lz_r.plot(dist_to_center=3, **kwds)
        return plo