public function connect(array $options = [])
    {
        $config = $this->_parseConfig($options);
        try {
            $this->client = new SoapClient($this->getConfig('wsdl'), $config);
        } catch (SoapFault $fault) {
            $this->handleError($fault->faultstring);
        }

        if ($this->client) {
            $this->connected = true;
        }

        return $this->connected;
    }