export declare type ProfileHandler<T> = (val: T) => void;
export declare type ProfileCalculation<T> = (values: T[]) => T;
export declare const AVERAGE_CALCULATION: (values: number[]) => number;
export declare const SUM_CALCULATION: (values: number[]) => number;
export declare class Profiler<T> {
    private name;
    private sampleSize;
    private currentSamples;
    private samples;
    private profileHandler?;
    private sampleHandler?;
    private calculationHandler;
    constructor(name: string, calculation: ProfileCalculation<T>, sampleSize?: number);
    onProfile(handler: ProfileHandler<T>): void;
    onSample(handler: ProfileHandler<T>): void;
    sample(val: T): void;
}