magento2-docker/app/code/IpSupply/CartToQuote/Model/CartItem.php

<?php

namespace IpSupply\CartToQuote\Model;

class CartItem extends \Magento\Framework\Model\AbstractModel
{

    protected function _construct()
    {
        $this->_init('IpSupply\CartToQuote\Model\ResourceModel\CartItem');
    }

}