{"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"(AssocItemContainer::Impl,"}]}
            (AssocItemContainer::Impl, Some(trait_item_did)) => trait_item_did,
            (AssocItemContainer::Trait, _) => self.def_id,
            // Inherent impl but this attr is only applied to trait assoc items.