docs: def write(self):
          """ Write configuration to chassis.
  
          Raise StreamWarningsError if configuration warnings found.
          """
  
          self.ix_command('write')
          stream_warnings = self.streamRegion.generateWarningList()
          warnings_list = (self.api.call('join ' + ' {' + stream_warnings + '} ' + ' LiStSeP').split('LiStSeP')
                           if self.streamRegion.generateWarningList() else [])
          for warning in warnings_list:
              if warning:
                  raise StreamWarningsError(warning)