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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):
 """ Graphical summary of pointwise pareto-k importance-sampling indices Pareto-k tail indices are plotted (on the y axis) for each observation unit (on the x axis) """

        seaborn.pointplot(
            y = self.pointwise.pareto_k,
            x = self.pointwise.index,
            join = False)