How to get all asset name in bundles?

Good day sir, i’m trying to get all object name on my bundles called “2Cubes.unity3d”
How i can see all object name on Debug.Log? I just want make sure the assetName is true inside 2Cubes.unity3d. Thank you

using System;
using UnityEngine;
using System.Collections;

public class Main : MonoBehaviour {

	public string BundleURL;
	public string assetName;

	// Use this for initialization
	IEnumerator Start () {
		using (WWW www = new WWW(BundleURL)) {

			yield return www;
			if (www.error != null)
				throw new Exception("WWW download had an error:" + www.error);
			AssetBundle bundle = www.assetBundle;
			if (assetName == "")
				Instantiate(bundle.mainAsset);
			else
				Instantiate(bundle.LoadAsset(assetName));
			// Unload the AssetBundles compressed contents to conserve memory
			bundle.Unload(false);

		}

	}
	
	// Update is called once per frame

}

you can get it from the .manifest of the bundle “2Cubes”