Function polkadot_node_subsystem_util::runtime::prospective_parachains_mode

pub async fn prospective_parachains_mode<Sender>(
    sender: &mut Sender,
    relay_parent: Hash
) -> Result<ProspectiveParachainsMode, Error>where
    Sender: SubsystemSender<RuntimeApiMessage>,

Requests prospective parachains mode for a given relay parent based on the Runtime API version.