RelayerRewards: StorageDescriptor<
    [
        SS58String,
        {
            bridged_chain_id: FixedSizeBinary<4>;
            lane_id: FixedSizeBinary<4>;
            owner: Enum<{ BridgedChain: undefined; ThisChain: undefined }>;
        },
    ],
    bigint,
    true,
    never,
>

Map of the relayer => accumulated reward.