how can i do a overwrite of \Magento\Framework\App\ObjectManager\ConfigCache

[jorge780326]

I need to do a overwrite of   \Magento\Framework\App\ObjectManager\ConfigCache

preference on di.xml do no work, also tray to create a plugin for save but did not work 

how can i do a overwrite of this calss?

i am on magento 2.2.6 and php 7.1.26

what i looking for is change the cache key some thing like this 

<?php
/**
 * Object manager configuration cache
 *
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace Magento\Framework\App\ObjectManager;

use Magento\Framework\Serialize\SerializerInterface;
use Magento\Framework\Serialize\Serializer\Serialize;

class ConfigCache implements \Magento\Framework\ObjectManager\ConfigCacheInterface
{
    /**
     * @var \Magento\Framework\Cache\FrontendInterface
     */
    protected $_cacheFrontend;

    /**
     * Cache prefix
     *
     * @var string
     */
    protected $_prefix = 'diConfig';

    /**
     * @var SerializerInterface
     */
    private $serializer;

    /**
     * @var \Magento\Framework\Url\ScopeInterface
     */
    private $scope;

    /**
     * @param \Magento\Framework\Cache\FrontendInterface $cacheFrontend
     * @param \Magento\Framework\Url\ScopeResolverInterface $scopeResolver
     */
    public function __construct(
        \Magento\Framework\Cache\FrontendInterface $cacheFrontend,
        \Magento\Framework\Url\ScopeResolverInterface $scopeResolver
    )
    {
        $this->_cacheFrontend = $cacheFrontend;
        try {
            $this->scope = $scopeResolver->getScope();
        } catch (\Exception $e) {
            $this->scope= null;
        }
    }

    public function updateKey($key)
    {
        if ($this->scope == null ) {
            $key = implode('-', [$this->_prefix, $key]);
        } else {
            $key = implode('-', [$this->_prefix, $this->scope->getId(), $key]);
        }

        return $key;
    }

    /**
     * Retrieve configuration from cache
     *
     * @param string $key
     * @return array|false
     */
    public function get($key)
    {
        $key = $this->updateKey($key);
        $data = $this->_cacheFrontend->load($key);
        if (!$data) {
            return false;
        }
        return $this->getSerializer()->unserialize($data);
    }

    /**
     * Save config to cache
     *
     * @param array $config
     * @param string $key
     * @return void
     */
    public function save(array $config, $key)
    {
        $key = $this->updateKey($key);
        $this->_cacheFrontend->save($this->getSerializer()->serialize($config), $key);
    }

    /**
     * Get serializer
     *
     * @return SerializerInterface
     * @deprecated 100.2.0
     */
    private function getSerializer()
    {
        if (null === $this->serializer) {
            $this->serializer = \Magento\Framework\App\ObjectManager::getInstance()->get(Serialize::class);
        }
        return $this->serializer;
    }
}