如何在Unity协程中获得剩余时间？

using UnityEngine;

public class Example : MonoBehaviour
{
    private Coroutine myCoroutine;
    
    private void Start()
    {
        // 启动协程
        myCoroutine = StartCoroutine(MyCoroutine());
    }
    
    private IEnumerator MyCoroutine()
    {
        Debug.Log("协程开始");
        
        // 暂停协程执行，并获取剩余时间
        yield return new WaitForSeconds(5f);
        float remainingTime = myCoroutine.GetRemainingTime();
        
        Debug.Log("协程继续执行，剩余时间：" + remainingTime);
        
        yield return new WaitForSeconds(remainingTime);
        
        Debug.Log("协程结束");
    }
}