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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 _release_save_states(self):
 """Releases application save states"""


        self.saving = False
        self.grid.Enable()
        wx.EndBusyCursor()

        # Mark content as unchanged
        try:
            post_command_event(self.main_window, self.ContentChangedMsg)
        except TypeError:
            # The main window does not exist any more
            pass