import { UsageInfo } from '../types/analysis';
export declare class UsageTracker {
    private usageFile;
    private defaultLimits;
    constructor();
    getUsage(): Promise<UsageInfo>;
    canValidate(): Promise<boolean>;
    trackValidation(filesCount: number, aiDetected: boolean, timeMs?: number): Promise<void>;
    updatePlan(plan: 'free' | 'pro' | 'team' | 'enterprise', licenseKey?: string): Promise<void>;
    getStats(): Promise<{
        totalValidations: number;
        aiDetections: number;
        averageFiles: number;
        averageTime: number;
    }>;
    private loadUsageData;
    private saveUsageData;
    private getCurrentMonth;
    private getNextResetDate;
    clearUsage(): Promise<void>;
}
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