return func(opts *options) {
		opts.unit = unit
	}
}

// WithEnabled allows a metric to be condition enabled if the provided function returns true.
// If disabled, metric operations will do nothing.
func WithEnabled(enabled func() bool) Options {
	return func(o *options) {
		o.enabledCondition = enabled
	}
}

func createOptions(name, description string, opts ...Options) (options, Metric) {

import (
	"github.com/spf13/cobra"
)

// Options defines the set of options supported by Istio's ControlZ component introspection package.
type Options struct {
	// The IP port to use for ctrlz.
	Port uint16

	// The IP address to listen on for ctrlz.
	Address string

	// If true, pprof will be enabled
	EnablePprof bool
}

// DefaultOptions returns a new set of options, initialized to the defaults

// limitations under the License.

package apply

import "istio.io/istio/pkg/test/framework/resource/config/cleanup"

// Options provide options for applying configuration
type Options struct {
	// Cleanup strategy
	Cleanup cleanup.Strategy

	// Wait for configuration to be propagated.
	Wait bool

	DefaultHTTPRequestMaxRetries = 5
)

// Options contains configurations to create a Cache instance.
type Options struct {
	PurgeInterval         time.Duration
	ModuleExpiry          time.Duration
	InsecureRegistries    sets.String
	HTTPRequestTimeout    time.Duration
	HTTPRequestMaxRetries int
}

func defaultOptions() Options {
	return Options{
		PurgeInterval:         DefaultPurgeInterval,

WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package options

import (
	"fmt"
	"io"
	"net"
	"net/url"

	"github.com/spf13/pflag"
	noopoteltrace "go.opentelemetry.io/otel/trace/noop"

	v1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"

	"github.com/google/pprof/internal/symbolizer"
	"github.com/google/pprof/internal/transport"
)

// setDefaults returns a new plugin.Options with zero fields sets to
// sensible defaults.
func setDefaults(o *plugin.Options) *plugin.Options {
	d := &plugin.Options{}
	if o != nil {
		*d = *o
	}
	if d.Writer == nil {
		d.Writer = oswriter{}
	}
	if d.Flagset == nil {
		d.Flagset = &GoFlags{}
	}

	"k8s.io/apiserver/pkg/storage/storagebackend"
	flowcontrolrequest "k8s.io/apiserver/pkg/util/flowcontrol/request"
	"k8s.io/client-go/tools/cache"
)

// RESTOptions is set of resource-specific configuration options to generic registries.
type RESTOptions struct {
	StorageConfig *storagebackend.ConfigForResource
	Decorator     StorageDecorator

	EnableGarbageCollection   bool
	DeleteCollectionWorkers   int

WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package options

import (
	"net"

	utilnet "k8s.io/apimachinery/pkg/util/net"
	netutils "k8s.io/utils/net"
)

// DefaultServiceNodePortRange is the default port range for NodePort services.

import (
	"k8s.io/client-go/tools/clientcmd"

	"istio.io/istio/istioctl/pkg/cli"
)

const (
	clusterNameAnnotationKey = "networking.istio.io/cluster"
)

// KubeOptions contains kubernetes options common to all commands.
type KubeOptions struct {
	Kubeconfig string
	Context    string
	Namespace  string
}

// Inherit the common kubernetes flags defined in the root package. This is a bit of a hack,

WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package options

import (
	"time"

	"github.com/spf13/pflag"
)

// VolumeConfigFlags is used to bind CLI flags to variables.  This top-level struct contains *all* enumerated