/**
 * Samples events based on the sampling size
 */
export declare class HeadSampler {
    #private;
    /**
     * Creates new instance of HeadSampler
     * @param samplingPercent sampling percentage
     */
    constructor(samplingPercent: number);
    /**
     * check if the event should be sampled
     * @returns true if the event should be sampled
     */
    shouldSample: () => boolean;
}
