Namespace Unity.EditorCoroutines.Editor

A handle to an EditorCoroutine, can be passed to EditorCoroutineUtility methods to control lifetime.

Suspends the EditorCoroutine execution for the given amount of seconds, using unscaled time. The coroutine execution continues after the specified time has elapsed.

using System.Collections;
using UnityEngine;
using Unity.EditorCoroutines.Editor;
using UnityEditor;

public class MyEditorWindow : EditorWindow
{
    IEnumerator PrintEachSecond()
    {
        var waitForOneSecond = new EditorWaitForSeconds(1.0f);
    while (true)
    {
        yield return waitForOneSecond;
        Debug.Log("Printing each second");
    }
}
}