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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 update(self, request, *args, **kwargs):
 """Update the ``Relation`` object. Reject the update if user doesn't have ``EDIT`` permission on the collection referenced in the ``Relation``. """

        instance = self.get_object()
        if (not request.user.has_perm('edit_collection', instance.collection)
                and not request.user.is_superuser):
            return Response(status=status.HTTP_401_UNAUTHORIZED)

        return super().update(request, *args, **kwargs)