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    Type Alias get_storage

    get_storage: RuntimeDescriptor<
        [address: FixedSizeBinary<20>, key: FixedSizeBinary<32>],
        ResultPayload<
            Binary
            | undefined,
            Enum<
                {
                    DoesntExist: undefined;
                    KeyDecodingFailed: undefined;
                    StorageWriteFailed: Enum<
                        {
                            Arithmetic: ArithmeticError;
                            BadOrigin: undefined;
                            CannotLookup: undefined;
                            ConsumerRemaining: undefined;
                            Corruption: undefined;
                            Exhausted: undefined;
                            Module: Enum<
                                {
                                    AhOps: Enum<
                                        {
                                            AccountIdentical: undefined;
                                            CannotUnreserve: undefined;
                                            ContributionsRemaining: undefined;
                                            FailedToPutHold: undefined;
                                            FailedToReleaseHold: undefined;
                                            FailedToReserve: undefined;
                                            FailedToSetFreeze: undefined;
                                            FailedToThaw: undefined;
                                            FailedToTransfer: undefined;
                                            FailedToWithdrawCrowdloanContribution: undefined;
                                            InternalError: undefined;
                                            NoCrowdloanContribution: undefined;
                                            NoCrowdloanReserve: undefined;
                                            NoLeaseReserve: undefined;
                                            NotSovereign: undefined;
                                            NotYet: undefined;
                                            WouldReap: undefined;
                                            WrongDerivedTranslation: undefined;
                                            WrongSovereignTranslation: undefined;
                                        },
                                    >;
                                    AssetConversion: Enum<
                                        {
                                            AmountOneLessThanMinimal: undefined;
                                            AmountOutTooHigh: undefined;
                                            AmountTwoLessThanMinimal: undefined;
                                            AssetOneDepositDidNotMeetMinimum: undefined;
                                            AssetOneWithdrawalDidNotMeetMinimum: undefined;
                                            AssetTwoDepositDidNotMeetMinimum: undefined;
                                            AssetTwoWithdrawalDidNotMeetMinimum: undefined;
                                            BelowMinimum: undefined;
                                            IncorrectPoolAssetId: undefined;
                                            InsufficientLiquidityMinted: undefined;
                                            InvalidAssetPair: undefined;
                                            InvalidPath: undefined;
                                            NonUniquePath: undefined;
                                            OptimalAmountLessThanDesired: undefined;
                                            Overflow: undefined;
                                            PoolExists: undefined;
                                            PoolNotFound: undefined;
                                            ProvidedMaximumNotSufficientForSwap: undefined;
                                            ProvidedMinimumNotSufficientForSwap: undefined;
                                            ReserveLeftLessThanMinimal: undefined;
                                            WrongDesiredAmount: undefined;
                                            ZeroAmount: undefined;
                                            ZeroLiquidity: undefined;
                                        },
                                    >;
                                    AssetConversionMigration: Enum<
                                        {
                                            InvalidAssetPair: undefined;
                                            PartialTransfer: undefined;
                                            PoolNotFound: undefined;
                                            ZeroBalance: undefined;
                                        },
                                    >;
                                    AssetRate: Enum<
                                        {
                                            AlreadyExists: undefined;
                                            Overflow: undefined;
                                            UnknownAssetKind: undefined;
                                        },
                                    >;
                                    AssetRewards: Enum<
                                        {
                                            BlockNumberConversionError: undefined;
                                            ExpiryBlockMustBeInTheFuture: undefined;
                                            ExpiryCut: undefined;
                                            InsufficientFunds: undefined;
                                            NonEmptyPool: undefined;
                                            NonExistentAsset: undefined;
                                            NonExistentPool: undefined;
                                            NonExistentStaker: undefined;
                                            NotEnoughTokens: undefined;
                                            RewardRateCut: undefined;
                                        },
                                    >;
                                    Assets: Enum<
                                        {
                                            AlreadyExists: undefined;
                                            AssetNotLive: undefined;
                                            BadAssetId: undefined;
                                            BadMetadata: undefined;
                                            BadWitness: undefined;
                                            BalanceLow: undefined;
                                            CallbackFailed: undefined;
                                            ContainsFreezes: undefined;
                                            ContainsHolds: undefined;
                                            Frozen: undefined;
                                            IncorrectStatus: undefined;
                                            InUse: undefined;
                                            LiveAsset: undefined;
                                            MinBalanceZero: undefined;
                                            NoAccount: undefined;
                                            NoDeposit: undefined;
                                            NoPermission: undefined;
                                            NotFrozen: undefined;
                                            Unapproved: undefined;
                                            UnavailableConsumer: undefined;
                                            Unknown: undefined;
                                            WouldBurn: undefined;
                                            WouldDie: undefined;
                                        },
                                    >;
                                    AssetsFreezer: Enum<{ TooManyFreezes: undefined }>;
                                    AssetTxPayment: undefined;
                                    Aura: undefined;
                                    AuraExt: undefined;
                                    Authorship: undefined;
                                    Balances: Enum<
                                        {
                                            DeadAccount: undefined;
                                            DeltaZero: undefined;
                                            ExistentialDeposit: undefined;
                                            ExistingVestingSchedule: undefined;
                                            Expendability: undefined;
                                            InsufficientBalance: undefined;
                                            IssuanceDeactivated: undefined;
                                            LiquidityRestrictions: undefined;
                                            TooManyFreezes: undefined;
                                            TooManyHolds: undefined;
                                            TooManyReserves: undefined;
                                            VestingBalance: undefined;
                                        },
                                    >;
                                    CollatorSelection: Enum<
                                        {
                                            AlreadyCandidate: undefined;
                                            AlreadyInvulnerable: undefined;
                                            DepositTooLow: undefined;
                                            IdenticalDeposit: undefined;
                                            InsertToCandidateListFailed: undefined;
                                            InsufficientBond: undefined;
                                            InvalidUnreserve: undefined;
                                            NoAssociatedValidatorId: undefined;
                                            NotCandidate: undefined;
                                            NotInvulnerable: undefined;
                                            RemoveFromCandidateListFailed: undefined;
                                            TargetIsNotCandidate: undefined;
                                            TooFewEligibleCollators: undefined;
                                            TooManyCandidates: undefined;
                                            TooManyInvulnerables: undefined;
                                            UpdateCandidateListFailed: undefined;
                                            ValidatorNotRegistered: undefined;
                                        },
                                    >;
                                    ConvictionVoting: Enum<
                                        {
                                            AlreadyDelegating: undefined;
                                            AlreadyVoting: undefined;
                                            BadClass: undefined;
                                            ClassNeeded: undefined;
                                            InsufficientFunds: undefined;
                                            MaxVotesReached: undefined;
                                            Nonsense: undefined;
                                            NoPermission: undefined;
                                            NoPermissionYet: undefined;
                                            NotDelegating: undefined;
                                            NotOngoing: undefined;
                                            NotVoter: undefined;
                                        },
                                    >;
                                    CumulusXcm: undefined;
                                    DelegatedStaking: Enum<
                                        {
                                            AlreadyStaking: undefined;
                                            BadState: undefined;
                                            InvalidDelegation: undefined;
                                            InvalidRewardDestination: undefined;
                                            NotAgent: undefined;
                                            NotAllowed: undefined;
                                            NotDelegator: undefined;
                                            NotEnoughFunds: undefined;
                                            NothingToSlash: undefined;
                                            NotSupported: undefined;
                                            UnappliedSlash: undefined;
                                            WithdrawFailed: undefined;
                                        },
                                    >;
                                    FastUnstake: Enum<
                                        {
                                            AlreadyHead: undefined;
                                            AlreadyQueued: undefined;
                                            CallNotAllowed: undefined;
                                            NotController: undefined;
                                            NotFullyBonded: undefined;
                                            NotQueued: undefined;
                                        },
                                    >;
                                    ForeignAssets: Enum<
                                        {
                                            AlreadyExists: undefined;
                                            AssetNotLive: undefined;
                                            BadAssetId: undefined;
                                            BadMetadata: undefined;
                                            BadWitness: undefined;
                                            BalanceLow: undefined;
                                            CallbackFailed: undefined;
                                            ContainsFreezes: undefined;
                                            ContainsHolds: undefined;
                                            Frozen: undefined;
                                            IncorrectStatus: undefined;
                                            InUse: undefined;
                                            LiveAsset: undefined;
                                            MinBalanceZero: undefined;
                                            NoAccount: undefined;
                                            NoDeposit: undefined;
                                            NoPermission: undefined;
                                            NotFrozen: undefined;
                                            Unapproved: undefined;
                                            UnavailableConsumer: undefined;
                                            Unknown: undefined;
                                            WouldBurn: undefined;
                                            WouldDie: undefined;
                                        },
                                    >;
                                    ForeignAssetsFreezer: Enum<{ TooManyFreezes: undefined }>;
                                    Indices: Enum<
                                        {
                                            InUse: undefined;
                                            NotAssigned: undefined;
                                            NotOwner: undefined;
                                            NotTransfer: undefined;
                                            Permanent: undefined;
                                        },
                                    >;
                                    MessageQueue: Enum<
                                        {
                                            AlreadyProcessed: undefined;
                                            InsufficientWeight: undefined;
                                            NoMessage: undefined;
                                            NoPage: undefined;
                                            NotReapable: undefined;
                                            Queued: undefined;
                                            QueuePaused: undefined;
                                            RecursiveDisallowed: undefined;
                                            TemporarilyUnprocessable: undefined;
                                        },
                                    >;
                                    MultiBlockElection: Enum<
                                        {
                                            Fallback: undefined;
                                            Snapshot: undefined;
                                            UnexpectedPhase: undefined;
                                        },
                                    >;
                                    MultiBlockElectionSigned: Enum<
                                        {
                                            BadPageIndex: undefined;
                                            BadWitnessData: undefined;
                                            Duplicate: undefined;
                                            NoSubmission: undefined;
                                            NotRegistered: undefined;
                                            PhaseNotSigned: undefined;
                                            QueueFull: undefined;
                                            RoundNotOver: undefined;
                                            TooManyInvulnerables: undefined;
                                        },
                                    >;
                                    MultiBlockElectionUnsigned: undefined;
                                    MultiBlockElectionVerifier: undefined;
                                    MultiBlockMigrations: Enum<{ Ongoing: undefined }>;
                                    Multisig: Enum<
                                        {
                                            AlreadyApproved: undefined;
                                            AlreadyStored: undefined;
                                            MaxWeightTooLow: undefined;
                                            MinimumThreshold: undefined;
                                            NoApprovalsNeeded: undefined;
                                            NotFound: undefined;
                                            NoTimepoint: undefined;
                                            NotOwner: undefined;
                                            SenderInSignatories: undefined;
                                            SignatoriesOutOfOrder: undefined;
                                            TooFewSignatories: undefined;
                                            TooManySignatories: undefined;
                                            UnexpectedTimepoint: undefined;
                                            WrongTimepoint: undefined;
                                        },
                                    >;
                                    NftFractionalization: Enum<
                                        {
                                            IncorrectAssetId: undefined;
                                            NftNotFound: undefined;
                                            NftNotFractionalized: undefined;
                                            NoPermission: undefined;
                                        },
                                    >;
                                    Nfts: Enum<
                                        {
                                            AlreadyClaimed: undefined;
                                            AlreadyExists: undefined;
                                            ApprovalExpired: undefined;
                                            AttributeNotFound: undefined;
                                            BadWitness: undefined;
                                            BidTooLow: undefined;
                                            CollectionIdInUse: undefined;
                                            CollectionNotEmpty: undefined;
                                            DeadlineExpired: undefined;
                                            InconsistentItemConfig: undefined;
                                            IncorrectData: undefined;
                                            IncorrectMetadata: undefined;
                                            ItemLocked: undefined;
                                            ItemsNonTransferable: undefined;
                                            LockedCollectionAttributes: undefined;
                                            LockedCollectionMetadata: undefined;
                                            LockedItemAttributes: undefined;
                                            LockedItemMetadata: undefined;
                                            MaxAttributesLimitReached: undefined;
                                            MaxSupplyLocked: undefined;
                                            MaxSupplyReached: undefined;
                                            MaxSupplyTooSmall: undefined;
                                            MetadataNotFound: undefined;
                                            MethodDisabled: undefined;
                                            MintEnded: undefined;
                                            MintNotStarted: undefined;
                                            NoConfig: undefined;
                                            NoPermission: undefined;
                                            NotDelegate: undefined;
                                            NotForSale: undefined;
                                            ReachedApprovalLimit: undefined;
                                            RolesNotCleared: undefined;
                                            Unaccepted: undefined;
                                            Unapproved: undefined;
                                            UnknownCollection: undefined;
                                            UnknownItem: undefined;
                                            UnknownSwap: undefined;
                                            WitnessRequired: undefined;
                                            WrongDelegate: undefined;
                                            WrongDuration: undefined;
                                            WrongNamespace: undefined;
                                            WrongOrigin: undefined;
                                            WrongOwner: undefined;
                                            WrongSetting: undefined;
                                            WrongSignature: undefined;
                                        },
                                    >;
                                    NominationPools: Enum<
                                        {
                                            AccountBelongsToOtherPool: undefined;
                                            AlreadyMigrated: undefined;
                                            BondExtraRestricted: undefined;
                                            CanNotChangeState: undefined;
                                            CannotWithdrawAny: undefined;
                                            CommissionChangeRateNotAllowed: undefined;
                                            CommissionChangeThrottled: undefined;
                                            CommissionExceedsGlobalMaximum: undefined;
                                            CommissionExceedsMaximum: undefined;
                                            Defensive: Enum<(...)>;
                                            DoesNotHavePermission: undefined;
                                            FullyUnbonding: undefined;
                                            InvalidPoolId: undefined;
                                            MaxCommissionRestricted: undefined;
                                            MaxPoolMembers: undefined;
                                            MaxPools: undefined;
                                            MaxUnbondingLimit: undefined;
                                            MetadataExceedsMaxLen: undefined;
                                            MinimumBondNotMet: undefined;
                                            NoCommissionCurrentSet: undefined;
                                            NoPendingCommission: undefined;
                                            NotDestroying: undefined;
                                            NothingToAdjust: undefined;
                                            NothingToSlash: undefined;
                                            NotKickerOrDestroying: undefined;
                                            NotMigrated: undefined;
                                            NotNominator: undefined;
                                            NotOpen: undefined;
                                            NotSupported: undefined;
                                            OverflowRisk: undefined;
                                            PartialUnbondNotAllowedPermissionlessly: undefined;
                                            PoolIdInUse: undefined;
                                            PoolMemberNotFound: undefined;
                                            PoolNotFound: undefined;
                                            Restricted: undefined;
                                            RewardPoolNotFound: undefined;
                                            SlashTooLow: undefined;
                                            SubPoolsNotFound: undefined;
                                        },
                                    >;
                                    Origins: undefined;
                                    ParachainInfo: undefined;
                                    ParachainSystem: Enum<
                                        {
                                            HostConfigurationNotAvailable: undefined;
                                            NotScheduled: undefined;
                                            OverlappingUpgrades: undefined;
                                            ProhibitedByPolkadot: undefined;
                                            TooBig: undefined;
                                            ValidationDataNotAvailable: undefined;
                                        },
                                    >;
                                    PolkadotXcm: Enum<
                                        {
                                            AccountNotSovereign: undefined;
                                            AliasNotFound: undefined;
                                            AlreadySubscribed: undefined;
                                            BadLocation: undefined;
                                            BadVersion: undefined;
                                            CannotCheckOutTeleport: undefined;
                                            CannotReanchor: undefined;
                                            DestinationNotInvertible: undefined;
                                            Empty: undefined;
                                            ExpiresInPast: undefined;
                                            FeesNotMet: undefined;
                                            Filtered: undefined;
                                            InUse: undefined;
                                            InvalidAssetUnknownReserve: undefined;
                                            InvalidAssetUnsupportedReserve: undefined;
                                            InvalidOrigin: undefined;
                                            LocalExecutionIncomplete: undefined;
                                            LocalExecutionIncompleteWithError: { error: ...; index: ... };
                                            LockNotFound: undefined;
                                            LowBalance: undefined;
                                            NoSubscription: undefined;
                                            SendFailure: undefined;
                                            TooManyAssets: undefined;
                                            TooManyAuthorizedAliases: undefined;
                                            TooManyLocks: undefined;
                                            TooManyReserves: undefined;
                                            Unreachable: undefined;
                                            UnweighableMessage: undefined;
                                        },
                                    >;
                                    PoolAssets: Enum<
                                        {
                                            AlreadyExists: undefined;
                                            AssetNotLive: undefined;
                                            BadAssetId: undefined;
                                            BadMetadata: undefined;
                                            BadWitness: undefined;
                                            BalanceLow: undefined;
                                            CallbackFailed: undefined;
                                            ContainsFreezes: undefined;
                                            ContainsHolds: undefined;
                                            Frozen: undefined;
                                            IncorrectStatus: undefined;
                                            InUse: undefined;
                                            LiveAsset: undefined;
                                            MinBalanceZero: undefined;
                                            NoAccount: undefined;
                                            NoDeposit: undefined;
                                            NoPermission: undefined;
                                            NotFrozen: undefined;
                                            Unapproved: undefined;
                                            UnavailableConsumer: undefined;
                                            Unknown: undefined;
                                            WouldBurn: undefined;
                                            WouldDie: undefined;
                                        },
                                    >;
                                    PoolAssetsFreezer: Enum<{ TooManyFreezes: undefined }>;
                                    Preimage: Enum<
                                        {
                                            AlreadyNoted: undefined;
                                            NotAuthorized: undefined;
                                            NotNoted: undefined;
                                            NotRequested: undefined;
                                            Requested: undefined;
                                            TooBig: undefined;
                                            TooFew: undefined;
                                            TooMany: undefined;
                                        },
                                    >;
                                    Proxy: Enum<
                                        {
                                            Duplicate: undefined;
                                            NoPermission: undefined;
                                            NoSelfProxy: undefined;
                                            NotFound: undefined;
                                            NotProxy: undefined;
                                            TooMany: undefined;
                                            Unannounced: undefined;
                                            Unproxyable: undefined;
                                        },
                                    >;
                                    Referenda: Enum<
                                        {
                                            BadReferendum: undefined;
                                            BadStatus: undefined;
                                            BadTrack: undefined;
                                            Full: undefined;
                                            HasDeposit: undefined;
                                            NoDeposit: undefined;
                                            NoPermission: undefined;
                                            NothingToDo: undefined;
                                            NotOngoing: undefined;
                                            NoTrack: undefined;
                                            PreimageNotExist: undefined;
                                            PreimageStoredWithDifferentLength: undefined;
                                            QueueEmpty: undefined;
                                            Unfinished: undefined;
                                        },
                                    >;
                                    Revive: Enum<
                                        {
                                            AccountAlreadyMapped: undefined;
                                            AccountUnmapped: undefined;
                                            BalanceConversionFailed: undefined;
                                            BasicBlockTooLarge: undefined;
                                            BlobTooLarge: undefined;
                                            CallDataTooLarge: undefined;
                                            CannotAddSelfAsDelegateDependency: undefined;
                                            CodeInfoNotFound: undefined;
                                            CodeInUse: undefined;
                                            CodeNotFound: undefined;
                                            CodeRejected: undefined;
                                            ContractNotFound: undefined;
                                            ContractReverted: undefined;
                                            ContractTrapped: undefined;
                                            DecodingFailed: undefined;
                                            DelegateDependencyAlreadyExists: undefined;
                                            DelegateDependencyNotFound: undefined;
                                            DuplicateContract: undefined;
                                            ExecutionFailed: undefined;
                                            InputForwarded: undefined;
                                            InvalidCallFlags: undefined;
                                            InvalidGenericTransaction: undefined;
                                            InvalidImmutableAccess: undefined;
                                            InvalidInstruction: undefined;
                                            InvalidJump: undefined;
                                            InvalidSchedule: undefined;
                                            InvalidStorageFlags: undefined;
                                            InvalidSyscall: undefined;
                                            MaxCallDepthReached: undefined;
                                            MaxDelegateDependenciesReached: undefined;
                                            OutOfBounds: undefined;
                                            OutOfGas: undefined;
                                            OutOfTransientStorage: undefined;
                                            ReenteredPallet: undefined;
                                            ReentranceDenied: undefined;
                                            RefcountOverOrUnderflow: undefined;
                                            ReturnDataTooLarge: undefined;
                                            StackOverflow: undefined;
                                            StackUnderflow: undefined;
                                            StateChangeDenied: undefined;
                                            StaticMemoryTooLarge: undefined;
                                            StorageDepositLimitExhausted: undefined;
                                            StorageDepositNotEnoughFunds: undefined;
                                            TerminatedInConstructor: undefined;
                                            TerminatedWhileReentrant: undefined;
                                            TooManyTopics: undefined;
                                            TransferFailed: undefined;
                                            TxFeeOverdraw: undefined;
                                            UnsupportedPrecompileAddress: undefined;
                                            ValueTooLarge: undefined;
                                        },
                                    >;
                                    Scheduler: Enum<
                                        {
                                            FailedToSchedule: undefined;
                                            Named: undefined;
                                            NotFound: undefined;
                                            RescheduleNoChange: undefined;
                                            TargetBlockNumberInPast: undefined;
                                        },
                                    >;
                                    Session: Enum<
                                        {
                                            DuplicatedKey: undefined;
                                            InvalidProof: undefined;
                                            NoAccount: undefined;
                                            NoAssociatedValidatorId: undefined;
                                            NoKeys: undefined;
                                        },
                                    >;
                                    SnowbridgeSystemFrontend: Enum<
                                        {
                                            BurnError: undefined;
                                            FeesNotMet: undefined;
                                            Halted: undefined;
                                            InvalidAccount: undefined;
                                            InvalidAssetOwner: undefined;
                                            LocationConversionFailed: undefined;
                                            SendFailure: undefined;
                                            SwapError: undefined;
                                            TipAmountZero: undefined;
                                            Unreachable: undefined;
                                            UnsupportedAsset: undefined;
                                            UnsupportedLocationVersion: undefined;
                                            WithdrawError: undefined;
                                        },
                                    >;
                                    Staking: Enum<
                                        {
                                            AlreadyBonded: undefined;
                                            AlreadyClaimed: undefined;
                                            AlreadyMigrated: undefined;
                                            AlreadyPaired: undefined;
                                            BadState: undefined;
                                            BadTarget: undefined;
                                            BoundNotMet: undefined;
                                            CancelledSlash: undefined;
                                            CannotChillOther: undefined;
                                            CannotReapStash: undefined;
                                            CannotRestoreLedger: undefined;
                                            CommissionTooLow: undefined;
                                            ControllerDeprecated: undefined;
                                            DuplicateIndex: undefined;
                                            EmptyTargets: undefined;
                                            EraNotPrunable: undefined;
                                            EraNotStarted: undefined;
                                            FundedTarget: undefined;
                                            IncorrectHistoryDepth: undefined;
                                            InsufficientBond: undefined;
                                            InvalidEraToReward: undefined;
                                            InvalidNumberOfNominations: undefined;
                                            InvalidPage: undefined;
                                            InvalidSlashRecord: undefined;
                                            NoMoreChunks: undefined;
                                            NotController: undefined;
                                            NotEnoughFunds: undefined;
                                            NotStash: undefined;
                                            NoUnlockChunk: undefined;
                                            Restricted: undefined;
                                            RewardDestinationRestricted: undefined;
                                            TooManyNominators: undefined;
                                            TooManyTargets: undefined;
                                            TooManyValidators: undefined;
                                            UnappliedSlashesInPreviousEra: undefined;
                                            VirtualStakerNotAllowed: undefined;
                                        },
                                    >;
                                    StakingRcClient: undefined;
                                    StateTrieMigration: Enum<
                                        {
                                            BadChildRoot: undefined;
                                            BadWitness: undefined;
                                            KeyTooLong: undefined;
                                            MaxSignedLimits: undefined;
                                            NotEnoughFunds: undefined;
                                            SignedMigrationNotAllowed: undefined;
                                        },
                                    >;
                                    Sudo: Enum<{ RequireSudo: undefined }>;
                                    System: Enum<
                                        {
                                            CallFiltered: undefined;
                                            FailedToExtractRuntimeVersion: undefined;
                                            InvalidSpecName: undefined;
                                            MultiBlockMigrationsOngoing: undefined;
                                            NonDefaultComposite: undefined;
                                            NonZeroRefCount: undefined;
                                            NothingAuthorized: undefined;
                                            SpecVersionNeedsToIncrease: undefined;
                                            Unauthorized: undefined;
                                        },
                                    >;
                                    Timestamp: undefined;
                                    ToRococoXcmRouter: undefined;
                                    TransactionPayment: undefined;
                                    Treasury: Enum<
                                        {
                                            AlreadyAttempted: undefined;
                                            EarlyPayout: undefined;
                                            FailedToConvertBalance: undefined;
                                            Inconclusive: undefined;
                                            InsufficientPermission: undefined;
                                            InvalidIndex: undefined;
                                            NotAttempted: undefined;
                                            PayoutError: undefined;
                                            ProposalNotApproved: undefined;
                                            SpendExpired: undefined;
                                            TooManyApprovals: undefined;
                                        },
                                    >;
                                    Uniques: Enum<
                                        {
                                            AlreadyExists: undefined;
                                            AttributeNotFound: undefined;
                                            BadWitness: undefined;
                                            BidTooLow: undefined;
                                            Frozen: undefined;
                                            InUse: undefined;
                                            Locked: undefined;
                                            MaxSupplyAlreadySet: undefined;
                                            MaxSupplyReached: undefined;
                                            MaxSupplyTooSmall: undefined;
                                            NoDelegate: undefined;
                                            NoMetadata: undefined;
                                            NoPermission: undefined;
                                            NotForSale: undefined;
                                            Unaccepted: undefined;
                                            Unapproved: undefined;
                                            UnknownCollection: undefined;
                                            UnknownItem: undefined;
                                            WrongAttribute: undefined;
                                            WrongDelegate: undefined;
                                            WrongMetadata: undefined;
                                            WrongOwner: undefined;
                                        },
                                    >;
                                    Utility: Enum<{ TooManyCalls: undefined }>;
                                    Vesting: Enum<
                                        {
                                            AmountLow: undefined;
                                            AtMaxVestingSchedules: undefined;
                                            InvalidScheduleParams: undefined;
                                            NotVesting: undefined;
                                            ScheduleIndexOutOfBounds: undefined;
                                        },
                                    >;
                                    VoterList: Enum<{ List: Enum<(...)>; Locked: undefined }>;
                                    WeightReclaim: undefined;
                                    Whitelist: Enum<
                                        {
                                            CallAlreadyWhitelisted: undefined;
                                            CallIsNotWhitelisted: undefined;
                                            InvalidCallWeightWitness: undefined;
                                            UnavailablePreImage: undefined;
                                            UndecodableCall: undefined;
                                        },
                                    >;
                                    XcmpQueue: Enum<
                                        {
                                            AlreadyResumed: undefined;
                                            AlreadySuspended: undefined;
                                            BadQueueConfig: undefined;
                                            TooBig: undefined;
                                            TooManyActiveOutboundChannels: undefined;
                                        },
                                    >;
                                },
                            >;
                            NoProviders: undefined;
                            Other: undefined;
                            RootNotAllowed: undefined;
                            Token: TokenError;
                            TooManyConsumers: undefined;
                            Transactional: TransactionalError;
                            Trie: Enum<
                                {
                                    DecodeError: undefined;
                                    DecoderError: undefined;
                                    DuplicateKey: undefined;
                                    ExtraneousHashReference: undefined;
                                    ExtraneousNode: undefined;
                                    ExtraneousValue: undefined;
                                    IncompleteDatabase: undefined;
                                    IncompleteProof: undefined;
                                    InvalidChildReference: undefined;
                                    InvalidHash: undefined;
                                    InvalidStateRoot: undefined;
                                    RootMismatch: undefined;
                                    ValueAtIncompleteKey: undefined;
                                    ValueMismatch: undefined;
                                },
                            >;
                            Unavailable: undefined;
                        },
                    >;
                },
            >,
        >,
    >

    Query a given storage key in a given contract.

    Returns Ok(Some(Vec<u8>)) if the storage value exists under the given key in the specified account and Ok(None) if it doesn't. If the account specified by the address doesn't exist, or doesn't have a contract then Err is returned.

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