@Deprecated
  public static CharMatcher invisible() {
    return Invisible.INSTANCE;
  }

  /**
   * Determines whether a character is single-width (not double-width). When in doubt, this matcher
   * errs on the side of returning {@code false} (that is, it tends to assume a character is
   * double-width).
   *
   * <p><b>Note:</b> as the reference file evolves, we will modify this matcher to keep it up to
   * date.
   *

- github.com/spiffe/go-spiffe/v2: [v2.5.0](https://github.com/spiffe/go-spiffe/tree/v2.5.0)
- github.com/zeebo/errs: [v1.4.0](https://github.com/zeebo/errs/tree/v1.4.0)
- go.etcd.io/raft/v3: v3.6.0
- go.opentelemetry.io/contrib/detectors/gcp: v1.34.0
- go.opentelemetry.io/otel/sdk/metric: v1.34.0
- go.yaml.in/yaml/v2: v2.4.2
- go.yaml.in/yaml/v3: v3.0.4

		rpcStats := rest.GetRPCStats()
		if globalIsDistErasure {
			metrics = append(metrics, MetricV2{
				Description: getInternodeFailedRequests(),
				Value:       float64(rpcStats.Errs),
			})
			metrics = append(metrics, MetricV2{
				Description: getInternodeTCPDialTimeout(),
				Value:       float64(rpcStats.DialErrs),
			})
			metrics = append(metrics, MetricV2{