}

// Metrics returns a current snapshot of the KMS metrics.
func (k *KMS) Metrics(ctx context.Context) (*Metrics, error) {
	latency := make(map[time.Duration]uint64, len(k.latencyBuckets))
	for i, b := range k.latencyBuckets {
		latency[b] = k.latency[i].Load()
	}

	return &Metrics{
		ReqOK:   k.reqOK.Load(),
		ReqErr:  k.reqErr.Load(),
		ReqFail: k.reqFail.Load(),
		Latency: latency,
	}, nil

			DefaultKey: env.Get(EnvKMSDefaultKey, ""),
			conn: &kmsConn{
				enclave:    env.Get(EnvKMSEnclave, ""),
				defaultKey: env.Get(EnvKMSDefaultKey, ""),
				client:     client,
			},
			latencyBuckets: defaultLatencyBuckets,
			latency:        make([]atomic.Uint64, len(defaultLatencyBuckets)),
		}, nil
	case lookup(EnvKESEndpoint):
		rawEndpoint := env.Get(EnvKESEndpoint, "")
		if rawEndpoint == "" {