Update index.d.ts
diff --git a/index.d.ts b/index.d.ts
index e98119d..a46a2eb 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -17,7 +17,7 @@
     playCount: number;
     isPaused: boolean;
     autoplay: boolean;
-    loop: boolean;
+    loop: boolean | number;
     renderer: any;
     animationID: string;
     assetsPath: string;