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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 OnTimer(self, event):
 """Update all frozen cells because of timer call"""


        self.timer_updating = True

        shape = self.grid.code_array.shape[:2]
        selection = Selection([(0, 0)], [(shape)], [], [], [])
        self.grid.actions.refresh_selected_frozen_cells(selection)
        self.grid.ForceRefresh()