import type { EdgeConfigClient } from '@vercel/edge-config';
/**
 * Creates a storage wrapper instance for Vercel Edge Config.
 *
 * @param options - The configuration options.
 * @param options.edgeConfigItemKey - Item key used to get Split feature flag definitions from Edge Config.
 * @param options.edgeConfig - The Edge Config client instance.
 * @returns A storage wrapper instance.
 */
export declare function EdgeConfigWrapper(options: {
    edgeConfigItemKey: string;
    edgeConfig: EdgeConfigClient;
}): {
    connect(): Promise<void>;
    disconnect(): Promise<void>;
    /**
     * Get the value of given `key`.
     *
     * @param key - Item to retrieve
     * @returns A promise that resolves with the element value associated with the specified `key`,
     * or null if the key does not exist.
     */
    get(key: string): Promise<string | null>;
    /**
     * Returns all keys matching the given prefix.
     *
     * @param prefix - String prefix to match
     * @returns A promise that resolves with the list of keys that match the given `prefix`.
     */
    getKeysByPrefix(prefix: string): Promise<string[]>;
    /**
     * Returns the values of all given `keys`.
     *
     * @param keys - List of keys to retrieve
     * @returns A promise that resolves with the list of items associated with the specified list of `keys`.
     * For every key that does not hold a string value or does not exist, null is returned.
     */
    getMany(keys: string[]): Promise<(string | null)[]>;
    /**
     * Returns if item is a member of a set.
     *
     * @param key - Set key
     * @param item - Item value
     * @returns A promise that resolves with true boolean value if `item` is a member of the set stored at `key`,
     * or false if it is not a member or `key` set does not exist.
     */
    itemContains(key: string, item: string): Promise<any>;
    /**
     * Returns all the items of the `key` set.
     *
     * @param key - Set key
     * @returns A promise that resolves with the list of items. If key does not exist, the result is an empty list.
     */
    getItems(key: string): Promise<any>;
    set(key: string, value: string): Promise<never>;
    getAndSet(key: string, value: string): Promise<never>;
    del(key: string): Promise<never>;
    incr(key: string): Promise<never>;
    decr(key: string): Promise<never>;
    addItems(key: string, items: string[]): Promise<never>;
    removeItems(key: string, items: string[]): Promise<never>;
    pushItems(key: string, items: string[]): Promise<never>;
    popItems(key: string, count: number): Promise<never>;
    getItemsCount(key: string): Promise<never>;
};