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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 smoothEstimate(self, nodeShape, estimatedNodeCount):
 """ Smooth out fluctuations in the estimate for this node compared to previous runs. Returns an integer. """

        weightedEstimate = (1 - self.betaInertia) * estimatedNodeCount + \
                           self.betaInertia * self.previousWeightedEstimate[nodeShape]
        self.previousWeightedEstimate[nodeShape] = weightedEstimate
        return self._round(weightedEstimate)