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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 serie(self, serie):
 """Make serie node"""

        return dict(
            plot=self.node(
                self.graph.nodes['plot'],
                class_='series serie-%d color-%d' % (serie.index, serie.index)
            ),
            overlay=self.node(
                self.graph.nodes['overlay'],
                class_='series serie-%d color-%d' % (serie.index, serie.index)
            ),
            text_overlay=self.node(
                self.graph.nodes['text_overlay'],
                class_='series serie-%d color-%d' % (serie.index, serie.index)
            )
        )