Function polkadot_node_subsystem_util::executor_params_at_relay_parent

pub async fn executor_params_at_relay_parent(
    relay_parent: Hash,
    sender: &mut impl SubsystemSender<RuntimeApiMessage>,
) -> Result<ExecutorParams, Error>

Requests executor parameters from the runtime effective at given relay-parent. First obtains session index at the relay-parent, relying on the fact that it should be cached by the runtime API caching layer even if the block itself has already been pruned. Then requests executor parameters by session index. Returns an error if failed to communicate to the runtime, or the parameters are not in the storage, which should never happen. Returns default execution parameters if the runtime doesn’t yet support SessionExecutorParams API call. Otherwise, returns execution parameters returned by the runtime.