{"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"token::CaretEq"}]}
            token::CaretEq => Some(AssignOp(AssignOpKind::BitXorAssign)),
            token::PercentEq => Some(AssignOp(AssignOpKind::RemAssign)),
            token::AndEq => Some(AssignOp(AssignOpKind::BitAndAssign)),