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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 on_select_show_box(self,event):
 """ Changes the type of mean shown on the high levels mean plot so that single dots represent one of whatever the value of this box is. @param: event -> the wx.COMBOBOXEVENT that triggered this function """

        self.parent.UPPER_LEVEL_SHOW=self.show_box.GetValue()
        self.parent.calculate_high_levels_data()
        self.parent.plot_high_levels_data()