newsupernova/app/code/Magefan/Blog/etc/di.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © 2016 Ihor Vansach (ihor@magefan.com). All rights reserved.
 * See LICENSE.txt for license details (http://opensource.org/licenses/osl-3.0.php).
 *
 * Glory to Ukraine! Glory to the heroes!
 */
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <preference for="Magefan\Blog\Api\PostManagementInterface" type="Magefan\Blog\Model\PostManagement" />
    <preference for="Magefan\Blog\Api\CategoryManagementInterface" type="Magefan\Blog\Model\CategoryManagement" />
    <!-- deprecated <preference for="Magento\Sitemap\Model\Sitemap" type="Magefan\Blog\Model\Sitemap" /> -->
    <virtualType name="Magefan\Blog\ImageUpload" type="Magento\Catalog\Model\ImageUploader">
        <arguments>
            <argument name="baseTmpPath" xsi:type="string">magefan_blog/tmp</argument>
            <argument name="basePath" xsi:type="string">magefan_blog</argument>
            <argument name="allowedExtensions" xsi:type="array">
                <item name="jpg" xsi:type="string">jpg</item>
                <item name="jpeg" xsi:type="string">jpeg</item>
                <item name="gif" xsi:type="string">gif</item>
                <item name="png" xsi:type="string">png</item>
            </argument>
        </arguments>
    </virtualType>
    <type name="Magefan\Blog\Controller\Adminhtml\Post\Upload\FeaturedImg">
        <arguments>
            <argument name="imageUploader" xsi:type="object">Magefan\Blog\ImageUpload</argument>
        </arguments>
    </type>
    <type name="Magefan\Blog\Controller\Adminhtml\Post\Upload\OgImg">
        <arguments>
            <argument name="imageUploader" xsi:type="object">Magefan\Blog\ImageUpload</argument>
        </arguments>
    </type>
    <type name="Magefan\Blog\Controller\Adminhtml\Post\Upload\Gallery">
        <arguments>
            <argument name="imageUploader" xsi:type="object">Magefan\Blog\ImageUpload</argument>
        </arguments>
    </type>
    <type name="Plumrocket\Amp\Helper\Data">
        <plugin name="plumrocket_amp_helper_data_magefan_blog"
                type="Magefan\Blog\Plugin\Plumrocket\Amp\HelperDataPlugin" sortOrder="10"/>
    </type>

    <type name="Plumrocket\Amp\Model\System\Config\Source\Page">
        <plugin name="plumrocket_amp_source_page_magefan_blog"
                type="Magefan\Blog\Plugin\Plumrocket\Amp\SourcePagePlugin" sortOrder="10"/>
    </type>

    <type name="Magento\Sitemap\Model\Sitemap">
        <plugin name="magento_sitemap_model_sitemap_magefan_blog"
                type="Magefan\Blog\Plugin\Magento\Sitemap\SitemapPlugin" sortOrder="10"/>
    </type>
</config>