code: def _config_to_text(self):
          
          r = u'' # unicode('',"UTF-8")
          for k in self._config:
              # if k == 'creation_date':
              #     r +=  k + ": " + self._config[k][0] + '\n'
              # else:
              #uk = unicode(k,"UTF-8")
              cosa = '\n        '.join(self._config[k]) + '\n'
              r += k + ": " + cosa
              #r += k + ": " + '\n        '.join(self._config[k]) + '\n'
          r += '\n'
          return r
docs: Render the configuration as text.