import { isCustomDs, isRuntimeDs } from '@subql/common-substrate';
import { DatasourceParams, Header, IBlock, IBlockchainService } from '@subql/node-core';
import { SubstrateCustomDatasource, SubstrateCustomHandler, SubstrateDatasource, SubstrateHandlerKind, SubstrateMapping } from '@subql/types';
import { SubqueryProject, SubstrateProjectDs } from './configure/SubqueryProject';
import { ApiService } from './indexer/api.service';
import { RuntimeService } from './indexer/runtime/runtimeService';
import { ApiAt, BlockContent, LightBlockContent } from './indexer/types';
import { IIndexerWorker } from './indexer/worker/worker';
export declare class BlockchainService implements IBlockchainService<SubstrateDatasource, SubstrateCustomDatasource<string, SubstrateMapping<SubstrateCustomHandler>>, SubqueryProject, ApiAt, LightBlockContent, BlockContent, IIndexerWorker> {
    private apiService;
    private runtimeService;
    constructor(apiService: ApiService, runtimeService: RuntimeService);
    isCustomDs: typeof isCustomDs;
    isRuntimeDs: typeof isRuntimeDs;
    blockHandlerKind: SubstrateHandlerKind;
    packageVersion: any;
    fetchBlocks(blockNums: number[]): Promise<IBlock<BlockContent>[] | IBlock<LightBlockContent>[]>;
    fetchBlockWorker(worker: IIndexerWorker, height: number, context: {
        workers: IIndexerWorker[];
    }): Promise<Header>;
    onProjectChange(project: SubqueryProject): Promise<void>;
    getBlockTimestamp(height: number): Promise<Date>;
    getBlockSize(block: IBlock): number;
    getFinalizedHeader(): Promise<Header>;
    getBestHeight(): Promise<number>;
    getChainInterval(): Promise<number>;
    getHeaderForHash(hash: string): Promise<Header>;
    getHeaderForHeight(height: number): Promise<Header>;
    updateDynamicDs(params: DatasourceParams, dsObj: SubstrateProjectDs): Promise<void>;
    getSafeApi(block: LightBlockContent | BlockContent): Promise<ApiAt>;
}