/**
 * Performance metrics
 */
export interface PerformanceMetrics {
    /** Total response time in milliseconds */
    responseTimeMs: number;
    /** Number of operations performed */
    operations: number;
    /** Number of errors encountered */
    errors: number;
}
/**
 * Format performance metrics for display
 *
 * @param metrics - Performance metrics
 * @returns Formatted string with performance info
 */
export declare function formatPerformance(metrics: PerformanceMetrics): string;
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