protected function getNational() {
        if (!$this->_national) {
            $this->_national = new NationalList(
                $this->version,
                $this->solution['accountSid'],
                $this->solution['countryCode']
            );
        }

        return $this->_national;
    }
protected function getNational() {
        if (!$this->_national) {
            $this->_national = new NationalList(
                $this->version,
                $this->solution['accountSid'],
                $this->solution['countryCode']
            );
        }

        return $this->_national;
    }
protected function getNational ( ) { if ( ! $ this -> _national ) { $ this -> _national = new NationalList ( $ this -> version , $ this -> solution [ 'accountSid' ] , $ this -> solution [ 'countryCode' ] ) ; } return $ this -> _national ; }
Access the national

@return \Twilio\Rest\Api\V2010\Account\AvailablePhoneNumberCountry\NationalList
Access the national