import type { Database } from 'lmdb';
import type { Key, Range } from '../interfaces/common.js';
import type { AztecAsyncSet, AztecSet } from '../interfaces/set.js';
/**
 * A set backed by LMDB.
 */
export declare class LmdbAztecSet<K extends Key> implements AztecSet<K>, AztecAsyncSet<K> {
    private map;
    constructor(rootDb: Database, mapName: string);
    close(): Promise<void>;
    has(key: K): boolean;
    hasAsync(key: K): Promise<boolean>;
    add(key: K): Promise<void>;
    delete(key: K): Promise<void>;
    entries(range?: Range<K>): IterableIterator<K>;
    entriesAsync(range?: Range<K>): AsyncIterableIterator<K>;
}
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