/**
 * Benchmark testing helpers for Vitest
 */
/**
 * Create a benchmark suite
 */
export declare function createBenchmark(name: string, options: {
    baseline: () => void | Promise<void>;
    optimized?: () => void | Promise<void>;
    iterations?: number;
}): {
    toMatchBaseline: (options?: {
        tolerance?: number;
    }) => boolean;
};
/**
 * Quick benchmark helper
 */
export declare function quickBench(name: string, function_: () => void | Promise<void>, iterations?: number): void;
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