datetime-duration-challenge/app/Traits/Invokable.php

<?php

namespace App\Traits;

trait Invokable
{
    /**
     * Invoke the given service.
     *
     * @see __invoke()
     */
    public static function invoke(...$arguments)
    {
        return app(static::class)(...$arguments);
    }

    /**
     * Invoke the given service if the boolean argument is truthy.
     *
     * @see __invoke()
     */
    public static function invokeIf($boolean, ...$arguments)
    {
        if (!$boolean) {
            return;
        }

        return static::invoke(...$arguments);
    }
}