{"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"CaptureKind::ByRef(BorrowKind::Mut"}]}
                CaptureKind::ByRef(BorrowKind::Mut {
                item.kind,
                    kind: MutBorrowKind::Default | MutBorrowKind::TwoPhasedBorrow