code: def _get_ssl_version(self, value):
          
          return self._get_ssl_attribute(value, compatibility.SSL_VERSIONS,
                                         ssl.PROTOCOL_TLSv1,
                                         'ssl_options: ssl_version \'%s\' not '
                                         'found falling back to PROTOCOL_TLSv1.')
docs: Get the TLS Version.
  
          :param str value:
          :return: TLS Version