export interface CyncTokenData {
    userId: string;
    accessToken: string;
    refreshToken?: string;
    expiresAt?: number;
    authorize?: string;
    lanLoginCode?: string;
}
/**
 * Simple JSON token store under the Homebridge storage path.
 *
 * Files are stored at:
 *   <storagePath>/homebridge-cync-app/cync-tokens.json
 */
export declare class CyncTokenStore {
    private readonly dirPath;
    private readonly filePath;
    constructor(storagePath: string);
    load(): Promise<CyncTokenData | null>;
    save(data: CyncTokenData): Promise<void>;
    clear(): Promise<void>;
}