{"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"T![^=]"}]}
                T![^=]  => BinaryOp::Assignment { op: Some(ArithOp::BitXor) },
                T![>>=] => BinaryOp::Assignment { op: Some(ArithOp::Shr) },
                T![|=]  => BinaryOp::Assignment { op: Some(ArithOp::BitOr) },