UnityEngine.MonoBehaviour.StartCoroutine C# (CSharp) Method

        public Coroutine StartCoroutine(IEnumerator routine)
        {
            AssertNull();

			try
			{
				var coroutine = new Coroutine(routine);
				ScheduleCoroutine(coroutine);
				return coroutine;
			}
			catch (InvalidOperationException)
			{
				return null;
			}
        }

    //
    public static void HideAndShow(MonoBehaviour sender ,string panelHide, string panelShow)
    {

        //hide menu
        GameObject.Find(panelHide).GetComponent<CanvasGroup>().interactable = false;
        sender.StartCoroutine(MenuBase.FadeHide(GameObject.Find(panelHide).GetComponent<CanvasGroup>()));


        //show
        GameObject diffObj = GameObject.Find(panelShow);
        diffObj.GetComponent<CanvasGroup>().interactable = true;
        sender.StartCoroutine(MenuBase.FadeShow(diffObj.GetComponent<CanvasGroup>()));
        MenuBase.BringToFront(diffObj);
    }