protected function getCertificates() {
        if (!$this->_certificates) {
            $this->_certificates = new CertificateList($this->version, $this->solution['sid']);
        }

        return $this->_certificates;
    }
protected function getCertificates() {
        if (!$this->_certificates) {
            $this->_certificates = new CertificateList($this->version, $this->solution['sid']);
        }

        return $this->_certificates;
    }
protected function getCertificates ( ) { if ( ! $ this -> _certificates ) { $ this -> _certificates = new CertificateList ( $ this -> version , $ this -> solution [ 'sid' ] ) ; } return $ this -> _certificates ; }
Access the certificates

@return \Twilio\Rest\Preview\DeployedDevices\Fleet\CertificateList
Access the certificates