func VimValidateVirtualCenter(c *vim25.Client) error {
	if c.ServiceContent.About.ApiType != "VirtualCenter" {
		return errors.New(ErrVirtualCenterOnly)
	}
	return nil
}
func VimValidateVirtualCenter(c *vim25.Client) error {
	if c.ServiceContent.About.ApiType != "VirtualCenter" {
		return errors.New(ErrVirtualCenterOnly)
	}
	return nil
}
// VimValidateVirtualCenter ensures that the client is connected to vCenter.
//
// This is a lower-level method that does not take the wrapped client from the
// higher-level govmomi object, and can be used to facilitate validation when
// it's not available.