{"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"Scope::DeriveHelpers(LocalExpnId::ROOT)"}]}
                Scope::DeriveHelpers(LocalExpnId::ROOT) => Scope::DeriveHelpersCompat,
            scope = match scope {
                Scope::DeriveHelpers(expn_id) => {