All chains
    Preparing search index...
    OutboundLanes: StorageDescriptor<
        [Key: FixedSizeBinary<4>],
        {
            latest_generated_nonce: bigint;
            latest_received_nonce: bigint;
            oldest_unpruned_nonce: bigint;
            state: Enum<{ Closed: undefined; Opened: undefined }>;
        },
        true,
        never,
    >

    Map of lane id => outbound lane data.