export interface WeightedItem<T> {
    value: T;
    weight: number;
}
/**
 * Returns a random element using cumulative weights and binary search.
 * Items with non-positive weights are skipped from the pool.
 *
 * @template T - Element type
 * @param {readonly WeightedItem<T>[]} items - Items with non-negative weights
 * @returns {T} A randomly selected element
 * @example
 * weightedChoice([{ value: "a", weight: 1 }, { value: "b", weight: 4 }]);
 */
export declare const weightedChoice: <T>(items: readonly WeightedItem<T>[]) => T;