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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 _point_plot_defaults(self, args, kwargs):
 """To avoid confusion for new users, this ensures that "scattered" points are plotted by by `plot` instead of points joined by a line. Parameters args : tuple Arguments representing additional parameters to be passed to `self.plot`. kwargs : dict Keyword arguments representing additional parameters to be passed to `self.plot`. Returns ------- Modified versions of `args` and `kwargs`. """

        if args:
            return args, kwargs

        if 'ls' not in kwargs and 'linestyle' not in kwargs:
            kwargs['linestyle'] = 'none'
        if 'marker' not in kwargs:
            kwargs['marker'] = 'o'
        return args, kwargs