public function getSingleConfig() { if (!$this->_sconfig) { $this->_sconfig = new \Magento\Framework\Connect\Singleconfig($this->getConfig()->magento_root . '/' . $this->getConfig()->downloader_path . '/' . \Magento\Framework\Connect\Singleconfig::DEFAULT_SCONFIG_FILENAME); } \Magento\Framework\Connect\Command::setSconfig($this->_sconfig); return $this->_sconfig; }