code: func (c *Client) CreateServerGroup(newServerGroup *ServerGroupOptions) (*ServerGroup, error) {
  	group := new(ServerGroup)
  	_, err := c.MakeApiRequest("POST", "/1.0/server_groups", newServerGroup, &group)
  	if err != nil {
  		return nil, err
  	}
  	return group, nil
  }
docs: // CreateServerGroup creates a new server group
  //
  // It takes an instance of ServerGroupOptions. Not all attributes can be
  // specified at create time (such as Id, which is allocated for you).