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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 set_backlight(self, state):
 """ Set Screen Backlight Mode """


        if state in ["on", "off", "toggle", "open", "blink", "flash"]:
            self.backlight = state
            self.server.request("screen_set %s backlight %s" % (self.ref, self.backlight))