func IsPseudoVersion(v string) bool {
	return strings.Count(v, "-") >= 2 && semver.IsValid(v) && pseudoVersionRE.MatchString(v)
}

// IsZeroPseudoVersion returns whether v is a pseudo-version with a zero base,
// timestamp, and revision, as returned by [ZeroPseudoVersion].
func IsZeroPseudoVersion(v string) bool {
	return v == ZeroPseudoVersion(semver.Major(v))
}

// PseudoVersionTime returns the time stamp of the pseudo-version v.