/**
 * Override dom KeyframeAnimationOptions with [documented types](https://developer.mozilla.org/en-US/docs/Web/API/KeyframeEffect/KeyframeEffect#parameters)
 */
export type AnimationOptions = Omit<KeyframeAnimationOptions, 'iterations'> & {
    iterations?: number | 'Infinity';
};
/**
 * Normalized animation input for internal use, created from AnimationInput
 */
export interface NormalizedAnimation {
    keyframes: Keyframe[];
    options: AnimationOptions;
}
/**
 * Defines an Web API Animation
 *
 * May be either
 * - an array of [Keyframes](https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API/Keyframe_Formats)
 * - an object containing a `keyframes` array and animation [options](https://developer.mozilla.org/en-US/docs/Web/API/Element/animate#parameters)
 */
export type AnimationInput = Keyframe[] | NormalizedAnimation | {
    keyframes: Keyframe[];
    options: number | AnimationOptions;
};
/**
 *
 * @returns a NormalizedAnimation from the given AnimationInput
 */
export declare const normalizedAnimation: (animationInput: AnimationInput | null) => NormalizedAnimation;