{"ast_node_type":"other","tokens":[{"end":40,"kind":"keyword","start":0,"text":"Node::Impl(impl_def_id)"}]}
            Node::Impl(impl_def_id) => {
            Node::Trait(_) => Some(tcx.associated_item(trait_item_def_id)),
                let id = tcx.impl_item_implementor_ids(impl_def_id).get(&trait_item_def_id)?;