{"ast_node_type":"other","tokens":[{"end":89,"kind":"keyword","start":0,"text":"arena.alloc_from_iter(explicit_generic_params.chain(extra_lifetimes.into_iter()))"}]}
        arena.alloc_from_iter(explicit_generic_params.chain(extra_lifetimes.into_iter()))
            self.lower_generic_params_mut(generic_params, hir::GenericParamSource::Binder);
    }