import { DyE2E_CWVMetric_Type } from '../../contracts/_enums/cwv-metric-type.enum';
import { DyE2E_CWVMeasurement_DataModel } from '../_models/cwv-measurement.data-model';
/**
 * Percentile + aggregator util — N-iter measurement-tömb → p50/p75/p95 + min/max/mean.
 */
export declare class DyE2E_CWVAggregator_Util {
    /**
     * `arr` legkisebbtől legnagyobbig — visszaadja az adott percentile-t lineáris
     * interpolációval (NIST recipe-mode 8).
     */
    static percentile(values: number[], p: number): number;
    /** Aggregálja a measurement-eket egy `{ p50, p75, p95, min, max, mean, n }` summary-vé. */
    static summarize(measurements: DyE2E_CWVMeasurement_DataModel[], metric: DyE2E_CWVMetric_Type): {
        p50: number;
        p75: number;
        p95: number;
        min: number;
        max: number;
        mean: number;
        n: number;
    };
}
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