/**
 * Defines the implementation contract for the setting repository.
 *
 * @export
 * @interface ISettingRepository
 */
export interface ISettingRepository {
    /**
     * Get all keys and values.
     *
     * @returns {object}
     * @memberof ISettingRepository
     */
    all(): object;
    /**
     * Get all keys.
     *
     * @returns {object}
     * @memberof ISettingRepository
     */
    keys(): object;
    /**
     * Get the given key.
     *
     * @template T
     * @param {string} key
     * @param {T} [defaultValue]
     * @returns {(T | undefined)}
     * @memberof ISettingRepository
     */
    get<T>(key: string, defaultValue?: T): T | undefined;
    /**
     * Set the given key.
     *
     * @param {string} key
     * @param {(string | number | boolean | object)} value
     * @memberof ISettingRepository
     */
    set(key: string, value: string | number | boolean | object): void;
    /**
     * Fill the storage with settings data.
     *
     * @param {object} entries
     * @memberof ISettingRepository
     */
    fill(entries: object): void;
    /**
     * Determine if the given key exists.
     *
     * @param {string} key
     * @returns {boolean}
     * @memberof ISettingRepository
     */
    has(key: string): boolean;
    /**
     * Determine if the given key is missing.
     *
     * @param {string} key
     * @returns {boolean}
     * @memberof ISettingRepository
     */
    missing(key: string): boolean;
    /**
     * Remove the given key.
     *
     * @param {string} key
     * @memberof ISettingRepository
     */
    forget(key: string): void;
    /**
     * Remove all keys.
     *
     * @memberof ISettingRepository
     */
    flush(): void;
}