import { type AnimationOptions } from 'motion';
/**
 * Split a focus definition into keyframes and an optional nested transition.
 *
 * @param def While-focus record that may include a nested `transition`.
 * @returns Object with `keyframes` (no `transition`) and optional `transition`.
 */
export declare const splitFocusDefinition: (def: Record<string, unknown>) => {
    keyframes: Record<string, unknown>;
    transition?: AnimationOptions;
};
/**
 * Compute the baseline values to restore to on focus end.
 *
 * Preference order per key: `animate` → `initial` → neutral transform defaults.
 *
 * @param el Target element.
 * @param opts Source records for baseline computation.
 * @returns Minimal baseline record to restore on focus end.
 */
export declare const computeFocusBaseline: (el: HTMLElement, opts: {
    initial?: Record<string, unknown>;
    animate?: Record<string, unknown>;
    whileFocus?: Record<string, unknown>;
}) => Record<string, unknown>;
/**
 * Attach whileFocus interactions to an element.
 *
 * On focus, animates to `whileFocus` (using nested `transition` if provided).
 * On blur, restores changed keys to the baseline using the merged transition.
 *
 * @param el Target element.
 * @param whileFocus While-focus definition.
 * @param mergedTransition Root/component merged transition.
 * @param callbacks Optional lifecycle callbacks for focus start/end.
 * @param baselineSources Optional sources used to compute baseline.
 * @returns Cleanup function to remove listeners.
 */
export declare const attachWhileFocus: (el: HTMLElement, whileFocus: Record<string, unknown> | undefined, mergedTransition: AnimationOptions, callbacks?: {
    onStart?: () => void;
    onEnd?: () => void;
}, baselineSources?: {
    initial?: Record<string, unknown>;
    animate?: Record<string, unknown>;
}) => (() => void);