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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 colorgamut(self):
 """The color gamut information of the light."""

        try:
            light_spec = self.controlcapabilities
            gtup = tuple([XYPoint(*x) for x in light_spec['colorgamut']])
            color_gamut = GamutType(*gtup)
        except KeyError:
            color_gamut = None

        return color_gamut