Helper/Config.php
public function getPrefetchShipping($store = null)
    {
        return $this->getScopeConfig()->isSetFlag(
            self::XML_PATH_PREFETCH_SHIPPING,
            ScopeInterface::SCOPE_STORE,
            $store
        );
    }
public function getPrefetchShipping($store = null)
    {
        return $this->getScopeConfig()->isSetFlag(
            self::XML_PATH_PREFETCH_SHIPPING,
            ScopeInterface::SCOPE_STORE,
            $store
        );
    }
public function getPrefetchShipping ( $ store = null ) { return $ this -> getScopeConfig ( ) -> isSetFlag ( self :: XML_PATH_PREFETCH_SHIPPING , ScopeInterface :: SCOPE_STORE , $ store ) ; }
Get Prefetch Shipping and Tax config

@param int|string|Store $store

@return  boolean
Get Prefetch Shipping and Tax config