func hashDeterministicString(m map[string]string) uint64 {
	// Seed (random)
	crc := uint64(0xc2b40bbac11a7295)
	// Xor each value to make order independent
	for k, v := range m {
		// Separate key and value with an individual xor with a random number.
		// Add values of each, so they cannot be trivially collided.

		Certs:      []madmin.TLSCert{},
	}

	if globalIsTLS {
		for _, c := range globalPublicCerts {
			check := xxh3.Hash(c.RawIssuer)
			check ^= xxh3.Hash(c.RawSubjectPublicKeyInfo)
			// We XOR, so order doesn't matter.
			for _, v := range c.DNSNames {
				check ^= xxh3.HashString(v)
			}
			for _, v := range c.EmailAddresses {
				check ^= xxh3.HashString(v)
			}

	}
	return v.toPromName(mg.CollectorPath.metricPrefix())
}

func (mg *MetricsGroup) validate() {
	if len(mg.Descriptors) == 0 {
		panic("Descriptors must be set")
	}

	// For bools A and B, A XOR B <=> A != B.
	isExactlyOneSet := (mg.loader == nil) != (mg.bucketLoader == nil)
	if !isExactlyOneSet {
		panic("Exactly one Loader function must be set")
	}