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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 zoomsetting_change_cb(self, setting, value):
 """Handle callback related to changes in zoom."""

        alg_name = self.t_['zoom_algorithm']
        self.zoom = zoom.get_zoom_alg(alg_name)(self)

        self.zoom_to(self.get_zoom())