{"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"start:"}]}
                start: start.as_ref().unwrap().internal(tables, tcx),
            Pattern::Range { start, end, include_end: _ } => rustc_ty::PatternKind::Range {
                end: end.as_ref().unwrap().internal(tables, tcx),