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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 merge(self, other):
 """Merges object with other NameVariants object, not set values of self.variants are replace by values from other object. """

        if not isinstance(other, NameVariants):
            raise TypeError("NameVariants isinstance can be merge with"
                            "other isinstance of the same class")
        for key in self.variants:
            self.variants[key] = self.variants[key] or other.variants[key]

        return self