{"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"item_descr:"}]}
                    item_descr: (&LazyDefPathStr {
                    item_kind: self.tcx.def_descr(self.item_def_id.to_def_id()),
                        def_id: self.item_def_id.to_def_id(),