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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 copyFeatures(self, featureSource):
 """ Copy the features from this source """

        if featureSource in self.sources:
            src, loc = self.sources[featureSource]
            if isinstance(src.features.text, str):
                self.font.features.text = u""+src.features.text
            elif isinstance(src.features.text, unicode):
                self.font.features.text = src.features.text