code: def send_os_command(self, os_command_text, is_priority=False):
          
          body = {'is-priority': is_priority,
                  'operating-system-command-text': os_command_text}
          self.manager.session.post(
              self.uri + '/operations/send-os-cmd', body)
docs: Send a command to the operating system running in this partition.
  
          Parameters:
  
            os_command_text (string): The text of the operating system command.
  
            is_priority (bool):
              Boolean controlling whether this is a priority operating system
              command, as follows:
  
              * If `True`, this message is treated as a priority operating
                system command.
  
              * If `False`, this message is not treated as a priority
                operating system command. The default.
  
          Returns:
  
            None
  
          Raises:
  
            :exc:`~zhmcclient.HTTPError`
            :exc:`~zhmcclient.ParseError`
            :exc:`~zhmcclient.AuthError`
            :exc:`~zhmcclient.ConnectionError`