pair, err := ParseEtcdVersionPair(s)
	if err != nil {
		panic(err)
	}
	return pair
}

// mustParseSupportedVersions parses a comma separated list of etcd versions or panics if the parse fails.
func mustParseSupportedVersions(list []string) SupportedVersions {
	versions, err := ParseSupportedVersions(list)
	if err != nil {
		panic(err)
	}
	return versions