{"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"self.lower_generic_params_mut(generic_params,"}]}
            self.lower_generic_params_mut(generic_params, hir::GenericParamSource::Binder);
        let explicit_generic_params =
        arena.alloc_from_iter(explicit_generic_params.chain(extra_lifetimes.into_iter()))