continue
		}
		e = append(e, r.Error())
	}
	if len(e) == 0 {
		return nil
	}
	return errors.New(strings.Join(e, "; "))
}

// establishResource sets up the relationship for a resource we received.
func (c *Client) establishResource(key resourceKey) {
	// Check if we have a watch for this resource
	parentNode, f := c.tree[key]
	if !f {
		parentNode = resourceNode{
			Parents:  make(keySet),