Unity : Can i see an example of Using Gizmo Draw as debuging tool?

ExampleDrawGizmos.cs

public class ExampleDrawGizmos : MonoBehaviour
{
    //On draw Gizmos can display debugging information in the Unity Editor
    //for easy visual debugging


    //Gizmos will not show up in your final game.
    //Gizmost are a debuging tool only, NOT a tool to make a game with xD 
    //This will draw in your sceneview, you can also see it in gameview if you would like to ( 
    private void OnDrawGizmos()
    {
        Gizmos.color = Color.blue;
        //Gizmos.DrawSphere(Vector3.zero, 1f);   //it will draw it at zero worldspace 
        Gizmos.DrawSphere(transform.position +new Vector3(3f,0f,0f), 0.5f + 0.1f * Mathf.Sin(Time.timeSinceLevelLoad));

        //You can represent all kind of things in a visual way, and it gives more information to you when you work on your game.
        Gizmos.color = Color.white;
        Gizmos.DrawWireSphere(transform.position + new Vector3(10, 0f, 0f), 2f);

        //Gizmos.DrawGUITexture(new Re);

        Gizmos.color = Color.red;
        Gizmos.DrawCube(new Vector3(10f, 10f, 10f), new Vector3(1f, 2f, 3f));

       
        //Gizmos.DrawIcon(transform.position + new Vector3(0f, 0f, 0f), "HEllo");

        Gizmos.DrawLine(transform.position, Vector3.zero);


        Gizmos.DrawLine(transform.position + Vector3.up, transform.position + Vector3.up + Vector3.left);
    }
}