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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 _linked_attribute(self, owner):
 """Choose the Linkage attribute between `via` and own entity's `id_field` FIXME Explore converting this method into an attribute, and treating it uniformly at `association` level. """

        return self.via or (utils.inflection.underscore(owner.__name__) + '_id')