{"ast_node_type":"other","tokens":[{"end":89,"kind":"keyword","start":0,"text":"Ident::new(self.tcx.item_name(def_id),"}]}
                        Ident::new(self.tcx.item_name(def_id), self.tcx.def_span(def_id))
                    .map(|&def_id| {
                    })