var go.opencensus.io/tag.errInvalidKeyName

3 uses

	go.opencensus.io/tag (current package)
		key.go#L27: 		return Key{}, errInvalidKeyName
		map.go#L193: 				return ctx, fmt.Errorf("key:%q: %v", k, errInvalidKeyName)
		validate.go#L28: 	errInvalidKeyName = errors.New("invalid key name: only ASCII characters accepted; max length must be 255 characters")