how to change the picture of an object on the unity editor code example

Example: how to change a image with code unity

// Change From GameOject
public GameObject GameObjectWithImage;
public Sprite ImageYouWant;
GameObjectWithImage.GetComponent<Image>().sprite = ImageYouWant

// Change From Image
public Image Image;
public Sprite ImageYouWant;
Image.sprite = ImageYouWant