import type { SettingsObject } from '../store/reducers/settings/types';
declare class SettingsManager {
    /**
     * Returns parsed settings value.
     * If value cannot be parsed, returns initially stored string.
     * If there is no value, return default value
     */
    readUserSettingsValue(key: string, defaultValue?: unknown): unknown;
    /**
     * Stringify value and set it to LS
     */
    setUserSettingsValue(key: string, value: unknown): void;
    /**
     * Extract values by provided settings object
     */
    extractSettingsFromLS: (settings: SettingsObject) => SettingsObject;
    private readValueFromLS;
    private setValueToLS;
}
export declare const settingsManager: SettingsManager;
export {};