{"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"|AsyncCallableRelevantTypes"}]}
            |AsyncCallableRelevantTypes { output_coroutine_ty, .. }| {
        let output_is_sized_pred = tupled_inputs_and_output_and_coroutine.map_bound(
                ty::TraitRef::new(