syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"queue_type(self,"}]}
source_snippet:                             queue_type(self, args.as_coroutine().resume_ty());
context_before:                             }
context_after:                             if let Some(witness) = tcx.mir_coroutine_witnesses(def_id) {