import { AbstractLedgerProvider } from '@canton-network/core-provider-ledger';
import { ACSCacheCollection, PaginatedACSCacheCollection } from '../cache/collection/collection';
import { AcsOptions, AcsService, PaginatedAcsOptions, PaginatedResolvedAcsOptions, ResolvedAcsOptions } from '../service';
import { ACSCacheCollectionOptions } from '../cache/collection';
export declare abstract class BaseReader<Options extends AcsOptions | PaginatedAcsOptions> {
    protected readonly ledger: AbstractLedgerProvider;
    protected readonly cacheOptions?: ACSCacheCollectionOptions | undefined;
    protected cacheCollection: ACSCacheCollection | PaginatedACSCacheCollection;
    protected service: AcsService;
    constructor(ledger: AbstractLedgerProvider, cacheOptions?: ACSCacheCollectionOptions | undefined);
    /**
     * Creates the appropriate cache collection for this reader.
     *
     * @internal For internal use only.
     * @returns The cache collection instance
     */
    protected abstract createCacheCollection(): ACSCacheCollection | PaginatedACSCacheCollection;
    /**
     * Reads active contracts from the cache.
     */
    read(options: Options): Promise<({
        workflowId?: string;
        contractEntry?: import("../../../ledger-client-types/dist/generated-clients/openapi-3.4.12").components["schemas"]["JsContractEntry"];
    } & {
        workflowId?: string;
        contractEntry?: import("../../../ledger-client-types/dist/generated-clients/openapi-3.5.1").components["schemas"]["JsContractEntry"];
        streamContinuationToken?: string;
    })[]>;
    /**
     * Convenience method that returns active contracts as JS contract objects.
     */
    readJsContracts(options: Options): Promise<{
        synchronizerId: string;
        offset: number;
        nodeId: number;
        contractId: string;
        templateId: string;
        contractKey?: unknown;
        createArgument: unknown;
        createdEventBlob?: string;
        interfaceViews?: {
            interfaceId: string;
            viewStatus: import("../../../ledger-client-types/dist/generated-clients/openapi-3.4.12").components["schemas"]["JsStatus"];
            viewValue?: unknown;
        }[] & {
            interfaceId: string;
            viewStatus: import("../../../ledger-client-types/dist/generated-clients/openapi-3.5.1").components["schemas"]["JsStatus"];
            viewValue?: unknown;
            implementationPackageId?: string;
        }[];
        witnessParties: string[];
        signatories: string[];
        observers?: string[];
        createdAt: string;
        packageName: string;
        representativePackageId: string;
        acsDelta: boolean;
        contractKeyHash?: string;
    }[]>;
    /**
     * Extracts active contracts from various output formats (single page, array of pages, or array of responses).
     */
    private getActiveContracts;
    /**
     * Transforms active contracts output into JS contract objects with created event details and synchronizer ID.
     */
    private readJsContractsWith;
    /**
     * Resolves ACS options by ensuring an offset is present, fetching the current ledger end if needed.
     */
    protected resolveAcsOptions(options: Options): Promise<Options extends PaginatedAcsOptions ? PaginatedResolvedAcsOptions : ResolvedAcsOptions>;
}
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