servers.go
func (c *Client) LockServer(identifier string) error {
	return c.LockResource(Server{Id: identifier})
}
func (c *Client) LockServer(identifier string) error {
	return c.LockResource(Server{Id: identifier})
}
// LockServer locks an existing server, preventing it's destruction without
// first unlocking. Deprecated, use LockResource instead.