fix d.ts

docs/assets/ts/artplayer.d.ts

@@ -547,7 +547,7 @@ declare class Player {
 }
 
 declare class Artplayer extends Player {
-    constructor(option: Option, readyCallback: (this: Artplayer) => void);
+    constructor(option: Option, readyCallback?: (this: Artplayer) => void);
 
     static instances: Artplayer[];
     static version: string;

packages/artplayer/types/artplayer.d.ts

@@ -547,7 +547,7 @@ declare class Player {
 }
 
 declare class Artplayer extends Player {
-    constructor(option: Option, readyCallback: (this: Artplayer) => void);
+    constructor(option: Option, readyCallback?: (this: Artplayer) => void);
 
     static instances: Artplayer[];
     static version: string;

test/types.test.ts

@@ -0,0 +1,6 @@
+import Artplayer from '../packages/artplayer/types/artplayer';
+
+const art = new Artplayer({
+    container: '.artplayer-app',
+    url: './assets/sample/video.mp4',
+});