export interface RegisteredAnimationSpec{keyframes:Keyframe[];rtlKeyframes?:Keyframe[];
/** Custom properties checked in order. Values may be a plain time or a compound `time easing`. */
durationProperties:readonly string[];
/** Custom properties checked in order for a standalone easing value. */
easingProperties?:readonly string[];fallbackDuration?:number;fallbackEasing?:string;options?:KeyframeAnimationOptions;}
/**
* Starts one registry-resolved animation with a component-owned, token-derived fallback.
* A `null` override returns no native `Animation`, so callers can complete their normal lifecycle
* immediately. Malformed public overrides fail closed to the sanitized fallback instead of
* throwing out of a component update.
*/
export declare function animateRegistered(registryHost:Element,target:HTMLElement,animationName:string,direction:'ltr'|'rtl',spec:RegisteredAnimationSpec):Animation|undefined;