import { BBI } from './bbi.ts';
import type { RequestOptions } from './types.ts';
/**
 * Parser for BigWig files. Inherits `getHeader`, `getFeatures`,
 * `getFeaturesMulti`, `getFeaturesAsArrays`, and `getFeaturesAsArraysMulti`
 * from `BBI`.
 *
 * Supports zoom levels — pass `opts.scale` or `opts.basesPerSpan` to
 * automatically select the appropriate pre-computed zoom level.
 */
export declare class BigWig extends BBI {
    /**
     * Retrieves a BlockView of a specific zoomLevel
     *
     * @param scale - number
     *
     * @param opts - An object containing basesPerSpan (e.g. pixels per basepair)
     * or scale used to infer the zoomLevel to use
     */
    protected getView(scale: number, opts?: RequestOptions): Promise<import("./block-view.ts").BlockView>;
}