Config.php

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<?php
namespace Magento\Translation\Block\Html\Head;

use Magento\Framework\RequireJs\Config as RequireJsConfig;
use Magento\Framework\Translate\Inline as Inline;

class Config extends \Magento\Framework\View\Element\AbstractBlock
{
    private $fileManager;

    protected $pageConfig;

    private $inline;

    public function __construct(
        \Magento\Framework\View\Element\Context $context,
        \Magento\Framework\View\Page\Config $pageConfig,
        \Magento\Translation\Model\FileManager $fileManager,
        Inline $inline,
        array $data = []
    ) {
        parent::__construct($context, $data);
        $this->pageConfig = $pageConfig;
        $this->fileManager = $fileManager;
        $this->inline = $inline;
    }

    protected function _prepareLayout()
    {
        $this->addInlineTranslationConfig();

        return parent::_prepareLayout();
    }

    private function addInlineTranslationConfig()
    {
        if ($this->inline->isAllowed()) {
            $after = RequireJsConfig::REQUIRE_JS_FILE_NAME;
            $tConfig = $this->fileManager->createTranslateConfigAsset();
            $assetCollection = $this->pageConfig->getAssetCollection();
            $assetCollection->insert(
                $tConfig->getFilePath(),
                $tConfig,
                $after
            );
        }
    }
}