export declare class WCStorage {
    private readonly localStorage;
    private readonly indexedDB;
    private channel;
    onMessageHandler: ((type: string) => void) | undefined;
    onErrorHandler: ((data: any) => void) | undefined;
    constructor();
    private onMessage;
    private onError;
    notify(type: string): void;
    hasPairings(): Promise<boolean>;
    hasSessions(): Promise<boolean>;
    backup(): void;
    resetState(): Promise<void>;
}