import type { Action } from 'svelte/action';
export type FocusInOptions = {
    /**
     * Whether the element is or contains a focused element.
     * @default false
     */
    focusin?: boolean;
    /**
     * Whether to mirror the focus state.
     * - If true, the action will focus the element (or the first focusable child) when the focusin state changes to true.
     * - If false, the action will only reflect the focusin events (focusin/focusout).
     * @default true
     */
    mirror?: boolean;
    /**
     * Event handler that fires when the focusin state changes.
     * @param value - New focusin state
     * @param e - FocusEvent that triggered the change
     */
    onChange?: (value: boolean, e: FocusEvent) => void;
    /**
     * Onblur debounce time in milliseconds.
     *
     * @default 0
     */
    debounce?: number;
};
export declare const focusin: Action<HTMLElement, FocusInOptions>;