import { NotificationDriver, Notifiable, SendResult } from '../interfaces/driver.interface';
import { FallbackStrategy } from '../types/fallback-strategy.enum';
import { DriverEntry } from './driver-entry.interface';
export declare class CompositeFallbackDriver implements NotificationDriver {
    private drivers;
    private strategy;
    private currentIndex;
    private defaultRetryConfig;
    constructor(drivers: DriverEntry[], strategy?: FallbackStrategy);
    private isClass;
    private instantiateDrivers;
    private sortDrivers;
    private hasMapMethod;
    send(notifiable: Notifiable, message: any, config?: any): Promise<SendResult>;
    private sendWithRetry;
    private shouldRetry;
    private calculateDelay;
    private mergeRetryConfig;
    private sleep;
    private runProviderHook;
    private selectDriver;
    private selectWeightedRandom;
}
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