Function polkadot_node_subsystem_util::request_persisted_validation_data

pub async fn request_persisted_validation_data(
    parent: Hash, 
    para_id: ParaId, 
    assumption: OccupiedCoreAssumption, 
    sender: &mut impl SubsystemSender
) -> RuntimeApiReceiver<Option<PersistedValidationData>>

Request PersistedValidationData from the runtime