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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 X_more(self):
 """Zoom in on the x-axis."""

        if self.parent.value('window_length') < 0.3:
            return
        self.parent.value('window_length',
                          self.parent.value('window_length') * 2)
        self.parent.overview.update_position()