client/simplestreams_images.go
func (r *ProtocolSimpleStreams) GetImageAlias(name string) (*api.ImageAliasesEntry, string, error) {
	alias, err := r.ssClient.GetAlias(name)
	if err != nil {
		return nil, "", err
	}

	return alias, "", err
}
func (r *ProtocolSimpleStreams) GetImageAlias(name string) (*api.ImageAliasesEntry, string, error) {
	alias, err := r.ssClient.GetAlias(name)
	if err != nil {
		return nil, "", err
	}

	return alias, "", err
}
// GetImageAlias returns an existing alias as an ImageAliasesEntry struct