import { type DebouncedFunction } from './debounce.js';
export interface ThrottleOptions {
    /**
     * Call function on the leading edge.
     * Defaults to true.
     */
    leading?: boolean;
    /**
     * Call function on the trailing edge.
     * Defaults to true.
     */
    trailing?: boolean;
}
/**
 * Create a throttled function that only invokes func at most once per wait ms.
 *
 * @param fn - The function to throttle
 * @param wait - The number of milliseconds to throttle invocations to
 * @param options - Throttle options
 * @returns Throttled function
 *
 * @example
 * const throttled = throttleFast(updatePosition, 100)
 * window.addEventListener('scroll', throttled)
 *
 * @example
 * // Only trailing
 * const throttled = throttleFast(save, 1000, { leading: false })
 */
export declare function throttleFast<T extends (...args: unknown[]) => unknown>(fn: T, wait: number, options?: ThrottleOptions): DebouncedFunction<T>;
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