code: def _extract_ocsp_certs(self, ocsp_response):
          
  
          status = ocsp_response['response_status'].native
          if status == 'successful':
              response_bytes = ocsp_response['response_bytes']
              if response_bytes['response_type'].native == 'basic_ocsp_response':
                  response = response_bytes['response'].parsed
                  if response['certs']:
                      for other_cert in response['certs']:
                          if self.certificate_registry.add_other_cert(other_cert):
                              self._revocation_certs[other_cert.issuer_serial] = other_cert
docs: Extracts any certificates included with an OCSP response and adds them
          to the certificate registry
  
          :param ocsp_response:
              An asn1crypto.ocsp.OCSPResponse object to look for certs inside of