{"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"ExprKind::Binary(binop,"}]}
            ExprKind::Binary(binop, lhs, rhs) if binop.node == BinOpKind::Add => {
            // Otherwise we don't assume the result type.
                if let (Some(lhs), Some(rhs)) = (lhs.to_bound(), rhs.to_bound()) {