{"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"hir_def::type_ref::Mutability::Mut"}]}
            hir_def::type_ref::Mutability::Mut => BorrowKind::Mut { kind: MutBorrowKind::Default },
            hir_def::type_ref::Mutability::Shared => BorrowKind::Shared,
        }