fix. typo

lib/RtcEngine.native.js

         Agora.setAudioSessionOperationRestriction();
     }
     /**
+     * @deprecated
      * start echo test
      *
      * This method launches an audio call test to determine whether the audio devices (for example, headset and speaker) and the network connection are working properly.
      * @returns Promise<{success, value}>
      */
-    static startEchoTest() {
-        return Agora.startEchoTest();
-    }
+    // public static startEchoTest(): Promise<any> {
+    //     return Agora.startEchoTest();
+    // }
     /**
      * stop echo test
      *
         return Agora.removeInjectStreamUrl(options);
     }
     /**
+     * @deprecated
      * set video quality
      *
      * This method sets the preferences for the video quality. (Live broadcast only).
      * @param quality boolean
      * @returns Promise<{success, value}>
      */
-    static setVideoQualityParameters(quality) {
-        return Agora.setVideoQualityParameters(quality);
-    }
+    // public static setVideoQualityParameters(quality: boolean): Promise<any> {
+    //     return Agora.setVideoQualityParameters(quality);
+    // }
     /**
      * set local video mirror mode
      *

src/RtcEngine.native.ts

     // }
 
     /**
-     * @deprecated
      * stop echo test
      * 
      * This method stop launched an audio call test.
      * @returns Promise<{success, value}>
      */
-    // public static stopEchoTest(): Promise<any> {
-    //     return Agora.stopEchoTest();
-    // }
+    public static stopEchoTest(): Promise<any> {
+        return Agora.stopEchoTest();
+    }
 
     /**
      * enable lastmile test