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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 get_font(self, values):
 """ 'height' 10pt = 200, 8pt = 160 """

        font_key = values
        f = self.FONT_FACTORY.get(font_key, None)
        if f is None:
            f = xlwt.Font()
            for attr, value in values:
                f.__setattr__(attr, value)
            self.FONT_FACTORY[font_key] = f
        return f