import { PricingMode } from 'aws-sdk/clients/iottwinmaker';
import { IPricingLimits } from '../../pricing/pricing.types';
import { IRequestCounter } from '../types/request.types';
import { IRequestTrackerService } from '../services/request.service';
export declare function isFreeTag(pricing_tag: string): boolean;
export declare function checkLimitExceeded(requests: IRequestCounter, limits: IPricingLimits): {
    exceeded: boolean;
    exceededLimits: string[];
};
export declare function calculateOverageRequests(requests: IRequestCounter, limits: IPricingLimits): number;
export declare function calculateRequests(requests: IRequestCounter): number;
export declare function calculateCost(pricing_mode: PricingMode, unit_price: number, requests: number): number;
export declare function getRequestStats(app_id: string, workspace_id: string, requestTrackerService: IRequestTrackerService): Promise<IRequestCounter>;
export declare function resetRequestCounter(app_id: string, workspace_id: string, requestTrackerService: IRequestTrackerService): Promise<void>;
export declare function cleanupOldCounters(requestTrackerService: IRequestTrackerService): Promise<void>;
export declare function checkRateLimit(app_id: string, workspace_id: string, limits: IPricingLimits, requestTrackerService: IRequestTrackerService): Promise<{
    allowed: boolean;
    reason?: string;
    reset_time?: Date;
}>;