syntax_data: {"ast_node_type":"other","tokens":[{"end":20,"kind":"keyword","start":0,"text":"match"}]}
source_snippet:         match self {
context_before:     pub fn tupled_upvars_ty(self) -> Ty<'tcx> {
context_after:             UpvarArgs::Closure(args) => args.as_closure().tupled_upvars_ty(),