}
}

// Returns true if input is IPv6
func isIPv6(host string) bool {
	h, _, err := net.SplitHostPort(host)
	if err != nil {
		h = host
	}
	ip := net.ParseIP(h)
	return ip.To16() != nil && ip.To4() == nil
}

// strip api endpoints list with standard ports such as
// port "80" and "443" before displaying on the startup
// banner.  Returns a new list of API endpoints.

					mark(n.Name)
				}
				return false
			case *ast.TypeSpec:
				if isDeprecated(n.Doc) {
					mark(n.Name)
				}
				return true // recurse into struct or interface type
			case *ast.StructType:
				return true // recurse into fields
			case *ast.InterfaceType:
				return true // recurse into methods
			case *ast.FieldList:
				return true // recurse into fields
			case *ast.ValueSpec:

///

```Python hl_lines="8  13"
{!> ../../docs_src/dependencies/tutorial006.py!}
```

////

### Return values

And they can return values or not, the values won't be used.

So, you can reuse a normal dependency (that returns a value) you already use somewhere else, and even though the value won't be used, the dependency will be executed:

//// tab | Python 3.9+

	if cardinality <= 0 {
		// Returns an empty int slice for cardinality < 0.
		return nil
	}

	nums := make([]int, cardinality)
	keyCrc := crc32.Checksum([]byte(key), crc32.IEEETable)

	start := int(keyCrc % uint32(cardinality))
	for i := 1; i <= cardinality; i++ {
		nums[i-1] = 1 + ((start + i) % cardinality)
	}
	return nums
}

var (
	file, object, deploymentID, prefix string

It doesn't return a large `str` containing the data in JSON format (as a string). It returns a Python standard data structure (e.g. a `dict`) with values and sub-values that are all compatible with JSON.

/// note

		return
	}
	err = en.WriteTime(z.Queued)
	if err != nil {
		err = msgp.WrapError(err, "Queued")
		return
	}
	// write "BitrotScan"
	err = en.Append(0xaa, 0x42, 0x69, 0x74, 0x72, 0x6f, 0x74, 0x53, 0x63, 0x61, 0x6e)
	if err != nil {
		return
	}
	err = en.WriteBool(z.BitrotScan)
	if err != nil {
		err = msgp.WrapError(err, "BitrotScan")
		return
	}
	return
}

		if err != nil {
			return nil, err
		}
		// Check if we have a response ready or a filler byte.
		switch b {
		case 0:
			return reader, nil
		case 1:
			errorText, err := io.ReadAll(reader)
			if err != nil {
				return nil, err
			}
			return nil, errors.New(string(errorText))
		case 32:
			continue
		default:
			return nil, fmt.Errorf("unexpected filler byte: %d", b)
		}

		if globalTierConfigMgr.Empty() {
			return
		}

		dui, err := loadDataUsageFromBackend(ctx, objLayer)
		if err != nil {
			metricsLogIf(ctx, err)
			return
		}
		// data usage has not captured any tier stats yet.
		if dui.TierStats == nil {
			return
		}

		return dui.tierMetrics()
	})
	return mg
}

	if err != nil {
		panic(err)
	}
	relTag = strings.Replace(relTag, ",", "", -1)
	relTag = relPrefix + "." + relTag
	if relSuffix != "" {
		relTag += "." + relSuffix
	}

	return relTag, t
}

// commitID returns the abbreviated commit-id hash of the last commit.
func commitID() string {
	// git log --format="%H" -n1
	var (
		commit []byte
		err    error
	)
	cmdName := "git"

				return nil
			}
		}
		configData, err := base64.StdEncoding.DecodeString(*versioning)
		if err != nil {
			return wrapSRErr(err)
		}
		_, err = globalBucketMetadataSys.Update(ctx, bucket, bucketVersioningConfig, configData)
		if err != nil {
			return wrapSRErr(err)
		}
		return nil
	}

	return nil
}