Update AnimationAction.d.ts

src/animation/AnimationAction.d.ts

@@ -4,7 +4,7 @@ import { AnimationActionLoopStyles } from '../constants';
 // Animation ////////////////////////////////////////////////////////////////////////////////////////
 
 export class AnimationAction {
-  loop: boolean;
+  loop: AnimationActionLoopStyles;
   time: number;
   timeScale: number;
   weight: number;