import { Json } from './types';
export declare const getString: (key: string) => string;
export declare const setString: (key: string, value: string) => void;
export declare const getBoolean: (key: string, defaultValue?: boolean) => boolean;
export declare const setBoolean: (key: string, value: boolean) => void;
export declare const getNumber: (key: string, defaultValue?: number) => number;
export declare const setNumber: (key: string, value: number) => void;
export declare const getJson: (key: string) => Json | null;
export declare const setJson: (key: string, json: Json) => void;
export declare const patchJson: (key: string, change: Json) => void;
export declare const valJson: (key: string, field: string) => any;
export declare const prefs: (key: string) => any;
export declare const clearJson: (key: string) => void;