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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 savefig(self, filename, **kwargs):
 """ Draw and save the plot. matplotlib accepts many different image formats while other backends will only export to html. """

        filename = os.path.expanduser(filename)
        kwargs.setdefault('show', False)
        kwargs.setdefault('save', filename)
        kwargs.setdefault('animate', False)
        return self._show_or_save(**kwargs)