import { IWappStorage, StorageChangeHandler } from './util/types';
/**
 * Initializes a WappStorage instance with the given name.
 *
 * @param name - The name of the WappStorage instance. If not provided, the default name will be used.
 * @return A promise that resolves to the initialized WappStorage instance.
 */
export declare function wappStorage<T extends Record<string, unknown>>(name?: string): Promise<WappStorage<T>>;
/**
 * Class representing a WappStorage instance.
 *
 * @satisfies IWappStorage
 * @template T - The type of the stored data.
 */
export declare class WappStorage<T extends Record<string, unknown> = Record<string, unknown>> implements IWappStorage<T> {
    #private;
    name: string;
    id: string;
    /**
     * Initializes a WappStorage instance with the provided name.
     *
     * @param name - The name of the WappStorage instance.
     */
    constructor(name: string);
    /**
     * Initializes the WappStorage instance by fetching data based on the provided name.
     *
     * @return A Promise that resolves once the initialization is complete.
     */
    init(): Promise<void>;
    /**
     * Sets the value of a key-value pair in the storage.
     *
     * @param name - The name of the key or an object containing multiple key-value pairs.
     * @param item - The value to set for the specified key. This parameter is optional when setting multiple key-value pairs.
     * @return A Promise that resolves to true if the value was successfully set, and false otherwise.
     */
    set<K extends keyof T>(name: K | T, item?: T[K]): Promise<boolean>;
    /**
     * Sets the secret value of a key-value pair in the storage.
     *
     * @param name - The name of the key or an object containing multiple key-value pairs.
     * @param item - The value to set as a secret for the specified key. This parameter is optional when setting multiple key-value pairs.
     * @return A Promise that resolves to true if the secret value was successfully set, and false otherwise.
     */
    setSecret<K extends keyof T>(name: K | T, item?: T[K]): Promise<boolean>;
    /**
     * Retrieves the value associated with the given name.
     *
     * @param name - The name of the value to retrieve.
     * @return The value associated with the given name.
     */
    get<K extends keyof T>(name: K): T[K] | undefined;
    get<K extends keyof T>(name: K[]): (T[K] | undefined)[];
    /**
     * Retrieves the secret value associated with the given name.
     *
     * @param name - The name of the secret value to retrieve.
     * @return The secret value associated with the given name, or undefined if the value is not found.
     */
    getSecret<K extends keyof T>(name: K): T[K] | undefined;
    getSecret<K extends keyof T>(name: K[]): (T[K] | undefined)[];
    /**
     * Returns an array of all the keys in the storage.
     *
     * @return An array of keys.
     */
    keys(): Array<string>;
    /**
     * Returns an array of all the values in the storage
     *
     * @return An array of values.
     */
    values(): T[keyof T][];
    /**
     * Retrieves an iterator of all the key-value pairs in the storage.
     *
     * @return An iterator of key-value pairs.
     */
    entries<K extends keyof T>(): [K, T[K]][];
    /**
     * Removes the specified name(s) from the storage.
     *
     * @param name - The name or an array of names to be removed.
     * @return A promise that resolves to true if the name(s) were successfully removed, and false otherwise.
     */
    remove(name: string | string[]): Promise<boolean>;
    /**
     * Removes a secret value from the storage.
     *
     * @param name - The name of the secret value to remove, or an array of names.
     * @return A promise that resolves to true if the secret value was successfully removed, and false otherwise.
     */
    removeSecret(name: string | string[]): Promise<boolean>;
    /**
     * Updates the data and returns a promise that resolves to a boolean indicating whether the update was successful.
     *
     * @return A promise that resolves to true if the update was successful, and false otherwise.
     */
    update(): Promise<boolean>;
    /**
     * Registers a callback function to be invoked when the storage changes.
     *
     * @param cb - The callback function to be invoked.
     * @return A promise that resolves to true if the callback was successfully registered, and false otherwise.
     */
    onChange(cb: StorageChangeHandler): Promise<boolean>;
    /**
     * Unregister the callback function that was previously registered with onChange.
     *
     * @return A promise that resolves to true if the callback was successfully unregistered, and false otherwise.
     */
    cancelOnChange(): Promise<boolean>;
    /**
     * Reloads the data from the server.
     *
     * @return A promise that resolves to a boolean indicating whether the reload was successful.
     */
    reload(): Promise<boolean>;
    /**
     * Resets the state of the wapp storage.
     *
     * @return A promise that resolves when the reset is complete.
     */
    reset(): Promise<void>;
}