/**
 * For a JSON array that gets too large to load in one go, this class
 * helps break it up into chunks and provides an
 * async API for using the information in the array.
 */
export default class LazyArray {
    constructor({ urlTemplate, chunkSize, length, cacheSize, readFile }: {
        urlTemplate: any;
        chunkSize: any;
        length: any;
        cacheSize?: number | undefined;
        readFile: any;
    }, baseUrl: any);
    /**
     * call the callback on one element of the array
     * @param i index
     * @param callback callback, gets called with (i, value, param)
     * @param param (optional) callback will get this as its last parameter
     */
    index(i: any, callback: any, param: any): void;
    /**
     * async generator for the elements in the range [start,end]
     *
     * @param start index of first element to call the callback on
     * @param end index of last element to call the callback on
     */
    range(start: any, end: any): AsyncGenerator<any[], void, unknown>;
    getChunk(chunkNumber: any): Promise<any[]>;
    filterChunkData(queryStart: any, queryEnd: any, chunkNumber: any, chunkData: any): Generator<any[], void, unknown>;
}