syntax_data: {"ast_node_type":"variable","tokens":[{"end":68,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:         let print_regions = args.iter().any(|arg| match arg.kind() {
context_before:         // Don't print any regions if they're all erased.
context_after:             GenericArgKind::Lifetime(r) => !r.is_erased(),