{"ns", []string{"ns", "nanosecond"}, float64(time.Nanosecond)},
		{"us", []string{"μs", "us", "microsecond"}, float64(time.Microsecond)},
		{"ms", []string{"ms", "millisecond"}, float64(time.Millisecond)},
		{"s", []string{"s", "sec", "second"}, float64(time.Second)},
		{"hrs", []string{"hour", "hr"}, float64(time.Hour)},
	},
	DefaultUnit: Unit{"s", []string{}, float64(time.Second)},
}, {
	Units: []Unit{
		{"n*GCU", []string{"nanogcu"}, 1e-9},

			writeErrorResponse(ctx, w, toAPIError(ctx, errInvalidEncryptionParameters), r.URL)
			return
		}

		if crypto.SSEC.IsRequested(r.Header) && crypto.S3.IsRequested(r.Header) {
			writeErrorResponse(ctx, w, toAPIError(ctx, crypto.ErrIncompatibleEncryptionMethod), r.URL)
			return
		}

		if crypto.SSEC.IsRequested(r.Header) && crypto.S3KMS.IsRequested(r.Header) {

    val plexusCipher = "org.sonatype.plexus:plexus-cipher"
    val plexusInterpolation = "org.codehaus.plexus:plexus-interpolation"
    val plexusSecDispatcher = "org.codehaus.plexus:plexus-sec-dispatcher"
    val plexusClassworlds = "org.codehaus.plexus:plexus-classworlds"
    val plexusUtils = "org.codehaus.plexus:plexus-utils"
    val plist = "com.googlecode.plist:dd-plist"

	EvCPUSamples // start of a section of CPU samples [...EvCPUSample]
	EvCPUSample  // CPU profiling sample [timestamp, M ID, P ID, goroutine ID, stack ID]
	EvFrequency  // timestamp units per sec [freq]

	// Procs.
	EvProcsChange // current value of GOMAXPROCS [timestamp, GOMAXPROCS, stack ID]
	EvProcStart   // start of P [timestamp, P ID, P seq]
	EvProcStop    // stop of P [timestamp]

	VersionID                  string
	ETag                       string
	Size                       int64
	ActualSize                 int64
	ModTime                    time.Time
	UserTags                   string
	SSEC                       bool
	ReplicationStatus          replication.StatusType
	ReplicationStatusInternal  string
	VersionPurgeStatusInternal string
	VersionPurgeStatus         VersionPurgeStatusType

				writeErrorResponse(r.Context(), w, errorCodes.ToAPIErr(ErrInvalidBucketName), r.URL)
				return
			}
		}
		// Deny SSE-C requests if not made over TLS
		if !globalIsTLS && (crypto.SSEC.IsRequested(r.Header) || crypto.SSECopy.IsRequested(r.Header)) {
			if r.Method == http.MethodHead {
				if ok {
					tc.FuncName = "handler.ValidRequest"
					tc.ResponseRecorder.LogErrBody = false
				}

						t.Logf("test %s: %q section not in readonly segment",
							wsro.Name, test.name)
						t.Logf("section %s location: st=0x%x en=0x%x\n",
							wsro.Name, wsro.Addr, wsro.Addr+wsro.FileSize)
						t.Logf("sec %s found in these segments: ", wsro.Name)
						for _, p := range foundSegs {
							t.Logf(" %q", p.Type)
						}
						t.Logf("\nall segments: \n")
						for k, p := range elfFile.Progs {

func (c *Cookie) String() string {
	if c == nil || !isCookieNameValid(c.Name) {
		return ""
	}
	// extraCookieLength derived from typical length of cookie attributes
	// see RFC 6265 Sec 4.1.
	const extraCookieLength = 110
	var b strings.Builder
	b.Grow(len(c.Name) + len(c.Value) + len(c.Domain) + len(c.Path) + extraCookieLength)
	b.WriteString(c.Name)
	b.WriteRune('=')

		atomic.AddUint64(&globalSiteNetPerfRX.RX, uint64(n))
		if err != nil && err != io.EOF && err != io.ErrUnexpectedEOF {
			// If there is a disconnection before globalNetPerfMinDuration (we give a margin of error of 1 sec)
			// would mean the network is not stable. Logging here will help in debugging network issues.
			if time.Since(connectTime) < (globalNetPerfMinDuration - time.Second) {
				adminLogIf(ctx, err)
			}
		}

This works similar to <<feature_variants.adoc#sec::declare_feature_variants,defining optional feature variants>> in build scripts.
We then use one of the `add` methods for adding dependencies to define which dependencies this optional feature needs.