code: func (c *Client) UpdateServer(updateServer *ServerOptions) (*Server, error) {
  	server := new(Server)
  	_, err := c.MakeApiRequest("PUT", "/1.0/servers/"+updateServer.Id, updateServer, &server)
  	if err != nil {
  		return nil, err
  	}
  	return server, nil
  }
docs: // UpdateServer updates an existing server's attributes. Not all attributes can
  // be changed after creation time (such as Image, ServerType and Zone).
  //
  // Specify the server you want to update using the ServerOptions Id field