code: def set_sni_dir_params(self, dir, ciphers=None):
          
          self._set('sni-dir', dir)
          self._set('sni-dir-ciphers', ciphers)
  
          return self._section
docs: Enable checking for cert/key/client_ca file in the specified directory
          and create a sni/ssl context on demand.
  
          Expected filenames:
              * <sni-name>.crt
              * <sni-name>.key
              * <sni-name>.ca - this file is optional
  
          * http://uwsgi.readthedocs.io/en/latest/SNI.html#massive-sni-hosting
  
          :param str|unicode dir:
  
          :param str|unicode ciphers: Ciphers [alias] string.
  
              Example:
                  * DEFAULT
                  * HIGH
                  * DHE, EDH
  
              * https://www.openssl.org/docs/man1.1.0/apps/ciphers.html