<?php
namespace Illuminate\Support;
use Carbon\CarbonInterval;
use DateInterval;
use Illuminate\Support\Traits\Macroable;
use PHPUnit\Framework\Assert as PHPUnit;
use RuntimeException;
class Sleep
{
use Macroable;
public static $fakeSleepCallbacks = [];
protected static $syncWithCarbon = false;
public $duration;
protected $pending = null;