// Print the format of a given cubemap.
var c : Cubemap;
if (c != null)
Debug.Log(c.format);
else
Debug.Log("No cubemap was assigned, please assing one on the inspector.");

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
public Cubemap c;
void Awake() {
if (c != null)
Debug.Log(c.format);
else
Debug.Log("No cubemap was assigned, please assing one on the inspector.");
}
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

public c as Cubemap

def Awake():
if c != null:
Debug.Log(c.format)
else:
Debug.Log('No cubemap was assigned, please assing one on the inspector.')