export interface StatsSummary {
    totalUses: number;
    daysUsed: number;
    avgUsesPerDay: number | string;
    topProviders: Array<{
        name: string;
        uses: number;
        successRate: string | number;
        avgResponseTime: number;
    }>;
    topCommands: Array<{
        command: string;
        count: number;
    }>;
    peakHour: string;
    peakDay: string;
    errors: number;
    avgResponseTime: number;
    lastUse: string;
}
export declare class StatsManager {
    private static readonly statsFile;
    private static initStats;
    private static loadStats;
    private static saveStats;
    static recordCommand(command: string): void;
    static recordProviderUse(identifier: string, success?: boolean, responseTime?: number | null): void;
    static recordError(type: string, message: string): void;
    static getSummary(): StatsSummary;
    static displayStats(verbose?: boolean): void;
    static cleanupOldStats(days?: number): void;
    static exportStats(outputPath: string): string | null;
    static resetStats(): void;
    static generateExportFilename(prefix?: string): string;
}
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