import { type HookErrorHandler } from '../utils/errors.js';
/** Options for {@link useLockFn}. @public */
export interface UseLockFnOptions {
    /** Observes a rejected invocation before the original error is rethrown. */
    readonly onError?: HookErrorHandler;
}
/** The stable function returned by {@link useLockFn}. @public */
export type LockFn<Args extends readonly unknown[], Result> = (...args: Args) => Promise<Result | undefined>;
/**
 * Prevents overlapping calls to an async or sync function.
 *
 * Calls made while another invocation is pending resolve to `undefined`. The
 * lock is released in `finally`, including when the function throws or
 * rejects, and the original failure remains a rejected promise.
 *
 * @public
 */
export declare function useLockFn<Args extends readonly unknown[], Result>(fn: (...args: Args) => Result | PromiseLike<Result>, options?: UseLockFnOptions): LockFn<Args, Awaited<Result>>;