export declare const flexProviderCredentialStoreId = "flex-provider-credentials.v1";
export declare const flexProviderCredentialConnectionLimit = 512;
export interface IFlexProviderCredentialStore {
    getEntry(accountArg: string): Promise<Uint8Array | null>;
    setEntry(accountArg: string, valueArg: Uint8Array): Promise<void>;
    deleteEntry(accountArg: string): Promise<boolean>;
}
export interface IFlexProviderCredentialKernelStore extends IFlexProviderCredentialStore {
    deleteEntryIfValue(accountArg: string, expectedValueArg: Uint8Array): Promise<'deleted' | 'alreadyAbsent'>;
}
export interface IFlexProviderCredentialStorePair<TKernelStore extends IFlexProviderCredentialKernelStore = IFlexProviderCredentialKernelStore, TSealedStore extends IFlexProviderCredentialStore = IFlexProviderCredentialStore> {
    kernelStore: TKernelStore;
    sealedStore: TSealedStore;
}
export interface IFlexProviderCredentialMigrationOptions<TKernelStore extends IFlexProviderCredentialKernelStore, TSealedStore extends IFlexProviderCredentialStore> {
    stores: IFlexProviderCredentialStorePair<TKernelStore, TSealedStore>;
    recreateStores: (storesArg: IFlexProviderCredentialStorePair<TKernelStore, TSealedStore>) => Promise<IFlexProviderCredentialStorePair<TKernelStore, TSealedStore>>;
    connectionIds: Iterable<string>;
}
export type TFlexProviderCredentialMigrationErrorCode = 'CONNECTION_LIMIT_EXCEEDED' | 'CREDENTIAL_CONFLICT' | 'CREDENTIAL_INVALID' | 'MUTATION_RECONCILIATION_FAILED';
export declare class FlexProviderCredentialMigrationError extends Error {
    readonly code: TFlexProviderCredentialMigrationErrorCode;
    constructor(code: TFlexProviderCredentialMigrationErrorCode);
}
export declare const migrateFlexProviderCredentials: <TKernelStore extends IFlexProviderCredentialKernelStore, TSealedStore extends IFlexProviderCredentialStore>(optionsArg: IFlexProviderCredentialMigrationOptions<TKernelStore, TSealedStore>, signalArg?: AbortSignal) => Promise<IFlexProviderCredentialStorePair<TKernelStore, TSealedStore>>;