import { NodeConfig, IProjectService, ProcessBlockResponse, BaseWorkerService, IProjectUpgradeService, IBlock, Header } from '@subql/node-core';
import { SubstrateDatasource } from '@subql/types';
import { ApiService } from '../api.service';
import { SpecVersion } from '../dictionary';
import { IndexerManager } from '../indexer.manager';
import { WorkerRuntimeService } from '../runtime/workerRuntimeService';
import { BlockContent, LightBlockContent } from '../types';
export type FetchBlockResponse = Header & {
    specVersion?: number;
};
export declare class WorkerService extends BaseWorkerService<BlockContent | LightBlockContent, FetchBlockResponse, SubstrateDatasource, {
    specVersion: number;
}> {
    private apiService;
    private indexerManager;
    private workerRuntimeService;
    constructor(apiService: ApiService, indexerManager: IndexerManager, workerRuntimeService: WorkerRuntimeService, projectService: IProjectService<SubstrateDatasource>, projectUpgradeService: IProjectUpgradeService, nodeConfig: NodeConfig);
    protected fetchChainBlock(height: number, { specVersion }: {
        specVersion: number;
    }): Promise<IBlock<BlockContent | LightBlockContent>>;
    protected toBlockResponse(block: IBlock<BlockContent>): FetchBlockResponse;
    protected getBlockSize(block: IBlock<BlockContent | LightBlockContent>): number;
    protected processFetchedBlock(block: IBlock<BlockContent | LightBlockContent>, dataSources: SubstrateDatasource[]): Promise<ProcessBlockResponse>;
    getSpecFromMap(height: number): number | undefined;
    syncRuntimeService(specVersions: SpecVersion[], latestFinalizedHeight?: number): void;
}