import type { Feature, ProgressCallback } from './types.ts';
import type { BigWigFeatureArrays, BigWigFeatureArraysMulti, SummaryFeatureArrays, SummaryFeatureArraysMulti } from './unzip.ts';
import type { GenericFilehandle } from 'generic-filehandle2';
interface CoordRequest {
    chrId: number;
    start: number;
    end: number;
}
interface Options {
    signal?: AbortSignal;
    request?: CoordRequest;
    onProgress?: ProgressCallback;
}
/**
 * View into a subset of the data in a BigWig file.
 *
 * Adapted by Robert Buels and Colin Diesh from bigwig.js in the Dalliance
 * Genome Explorer by Thomas Down.
 */
export declare class BlockView {
    private rTreePromise?;
    private rTreeNodeCache;
    private bbi;
    private refsByName;
    private rTreeOffset;
    private uncompressBufSize;
    private blockType;
    constructor(bbi: GenericFilehandle, refsByName: Record<string, number>, rTreeOffset: number, uncompressBufSize: number, blockType: string);
    private _collectBlocks;
    readWigData(chrName: string, start: number, end: number, opts?: Options): Promise<Feature[]>;
    private _collectBlocksMulti;
    readWigDataMulti(regions: {
        refName: string;
        start: number;
        end: number;
    }[], opts?: Options): Promise<Feature[][]>;
    readWigDataAsArrays(chrName: string, start: number, end: number, opts?: Options): Promise<BigWigFeatureArrays | SummaryFeatureArrays>;
    readWigDataAsArraysMulti(regions: {
        refName: string;
        start: number;
        end: number;
    }[], opts?: Options): Promise<BigWigFeatureArraysMulti | SummaryFeatureArraysMulti>;
    private _readBlocksAsArraysMulti;
    private _forEachDecodedBlock;
    readFeatures(blocks: {
        offset: number;
        length: number;
    }[], opts?: Options): Promise<Feature[]>;
    private _readBlocksAsArrays;
    private _readBigWigFeaturesAsArrays;
    private _readSummaryFeaturesAsArrays;
}
export {};