import { BucketName, CollectionName, CouchbaseClusterTypes, DocDefMatchingBody, ScopeName } from '@cbjsdev/shared';
import type { Collection } from '../../../collection.js';
import { type NodeCallback, type VoidNodeCallback } from '../../../utilities.js';
/**
 * CouchbaseSet provides a simplified interface for storing a set
 * within a Couchbase document.
 *
 * @see {Collection.set}
 * @category Datastructures
 */
export declare class CouchbaseSet<T extends CouchbaseClusterTypes, B extends BucketName<T>, S extends ScopeName<T, B>, C extends CollectionName<T, B, S>, Key extends DocDefMatchingBody<ReadonlyArray<Item>, T, B, S, C>['Key'], Item> {
    private _coll;
    private _key;
    /**
     * @internal
     */
    constructor(collection: Collection<T, B, S, C>, key: Key);
    private _get;
    /**
     * Adds a new item to the set.
     * Returns whether the item already existed in the set or not.
     *
     * @param item The item to add.
     * @param callback A node-style callback to be invoked after execution.
     */
    add(item: Item, callback?: NodeCallback<boolean>): Promise<boolean>;
    /**
     * Returns whether a specific value already exists in the set.
     *
     * @param item The value to search for.
     * @param callback A node-style callback to be invoked after execution.
     */
    contains(item: Item, callback?: NodeCallback<boolean>): Promise<boolean>;
    /**
     * Removes a specific value from the set.
     *
     * @param item The value to remove.
     * @param callback A node-style callback to be invoked after execution.
     */
    remove(item: Item, callback?: VoidNodeCallback): Promise<void>;
    /**
     * Returns a list of all values in the set.
     *
     * @param callback A node-style callback to be invoked after execution.
     */
    values(callback?: NodeCallback<Item[]>): Promise<Item[]>;
    /**
     * Returns the number of elements in this set.
     *
     * @param callback A node-style callback to be invoked after execution.
     */
    size(callback?: NodeCallback<number>): Promise<number>;
}