{"ast_node_type":"other","tokens":[{"end":40,"kind":"keyword","start":0,"text":"self.arena.alloc(hir::Generics"}]}
        self.arena.alloc(hir::Generics {
    fn lower_delegation_generics(&mut self, span: Span) -> &'hir hir::Generics<'hir> {
            params: &[],