import { PushyMeInterface } from '../interfaces/pushy-me.interface';
import { JSONValue } from '../types';
import { SendPushNotificationOptions, SendPushNotificationResult } from '../types/push.types';
export declare class PushyMeService implements PushyMeInterface {
    private apiKey?;
    setApiKey(apiKey: string): void;
    sendPushNotification(data: JSONValue, recipient: string | string[], options?: Partial<SendPushNotificationOptions>): Promise<SendPushNotificationResult>;
    private apiKeyIsSet;
}