Interface Service

space: {
    info: ServiceMethod<{}, SpaceD1, Failure>;
    recover: ServiceMethod<{}, EncodedDelegation<[{}]>[], Failure>;
    recover-validation: ServiceMethod<{}, undefined | EncodedDelegation<[{}]>, Failure>;
}

voucher: {
    claim: ServiceMethod<{}, undefined | EncodedDelegation<[{}]>, Failure>;
    redeem: ServiceMethod<{}, void, Failure>;
}