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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 render(self, is_unicode=False, **kwargs):
 """Render the graph, and return the svg string"""

        self.setup(**kwargs)
        svg = self.svg.render(
            is_unicode=is_unicode, pretty_print=self.pretty_print
        )
        self.teardown()
        return svg