import { ParseableFile } from './parsable_file';
export declare type JSONValue = null | number | string | boolean | JSONValue[] | {
    [k: string]: undefined | JSONValue;
};
export declare type JSONObject = {
    [k: string]: undefined | JSONValue;
};
export declare class JSONFile<T extends JSONObject = JSONObject> extends ParseableFile<T> {
    stringify(content?: T): string;
    parse(content: string): T;
    get parsedContent(): Promise<T>;
    /** @see https://stackoverflow.com/a/8817461/340688 */
    static getDeep(obj: JSONObject, key: string): undefined | JSONValue;
    /** @see https://stackoverflow.com/a/18937118/340688 */
    static setDeep(obj: JSONObject, key: string, value: JSONValue): JSONObject;
    /** @see https://stackoverflow.com/a/48666737/340688 */
    static unsetDeep(obj: JSONObject, key: string): void;
    getDeep(prop: string): Promise<string | number | boolean | JSONValue[] | {
        [k: string]: string | number | boolean | JSONValue[] | any | null | undefined;
    } | null | undefined>;
    setDeep(prop: string, value: JSONValue): Promise<T>;
    unsetDeep(prop: string): Promise<T>;
    get(prop: keyof T): Promise<T[keyof T]>;
    set(prop: keyof T, value: JSONValue): Promise<T>;
    unset(prop: keyof T): Promise<T>;
}