{"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"hir::AssignOpKind::AddAssign"}]}
            hir::AssignOpKind::AddAssign => (sym::add_assign, lang.add_assign_trait()),
        Op::AssignOp(op) => match op.node {
            hir::AssignOpKind::SubAssign => (sym::sub_assign, lang.sub_assign_trait()),