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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 extend(self, other):
 """ Return a new HyperparameterDefaults instance containing the hyperparameters from the current instance combined with those from other. It is an error if self and other have any hyperparameters in common. """

        overlap = [key for key in other.defaults if key in self.defaults]
        if overlap:
            raise ValueError(
                "Duplicate hyperparameter(s): %s" % " ".join(overlap))
        new = dict(self.defaults)
        new.update(other.defaults)
        return HyperparameterDefaults(**new)