import type { Database, Key } from 'lmdb';
import type { AztecArray, AztecAsyncArray } from '../interfaces/array.js';
import type { Value } from '../interfaces/common.js';
/**
 * An persistent array backed by LMDB.
 */
export declare class LmdbAztecArray<T extends Value> implements AztecArray<T>, AztecAsyncArray<T> {
    #private;
    constructor(db: Database<unknown, Key>, arrName: string);
    get length(): number;
    lengthAsync(): Promise<number>;
    push(...vals: T[]): Promise<number>;
    pop(): Promise<T | undefined>;
    at(index: number): T | undefined;
    atAsync(index: number): Promise<T | undefined>;
    setAt(index: number, val: T): Promise<boolean>;
    entries(): IterableIterator<[number, T]>;
    entriesAsync(): AsyncIterableIterator<[number, T]>;
    values(): IterableIterator<T>;
    valuesAsync(): AsyncIterableIterator<T>;
    [Symbol.iterator](): IterableIterator<T>;
    [Symbol.asyncIterator](): AsyncIterableIterator<T>;
}
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