Helper/Data.php
public function isSubscriberSyncEnabled($websiteId = 0)
    {
        return $this->scopeConfig->getValue(
            \Dotdigitalgroup\Email\Helper\Config::XML_PATH_CONNECTOR_SYNC_SUBSCRIBER_ENABLED,
            \Magento\Store\Model\ScopeInterface::SCOPE_WEBSITE,
            $websiteId
        );
    }
public function isSubscriberSyncEnabled($websiteId = 0)
    {
        return $this->scopeConfig->getValue(
            \Dotdigitalgroup\Email\Helper\Config::XML_PATH_CONNECTOR_SYNC_SUBSCRIBER_ENABLED,
            \Magento\Store\Model\ScopeInterface::SCOPE_WEBSITE,
            $websiteId
        );
    }
public function isSubscriberSyncEnabled ( $ websiteId = 0 ) { return $ this -> scopeConfig -> getValue ( \ Dotdigitalgroup \ Email \ Helper \ Config :: XML_PATH_CONNECTOR_SYNC_SUBSCRIBER_ENABLED , \ Magento \ Store \ Model \ ScopeInterface :: SCOPE_WEBSITE , $ websiteId ) ; }
Is subscriber sync enabled.

@param int $websiteId

@return bool
Is subscriber sync enabled .