See the License for the specific language governing permissions and
limitations under the License.
*/

// This file helps to detect whether we changed the interface of Listers.
// This is important for downstream projects who import the Listers to not
// breaking their codes.

package contract

import (
	"k8s.io/kubernetes/pkg/scheduler/framework"
)

var _ framework.NodeInfoLister = &nodeInfoListerContract{}

	v1 "k8s.io/api/core/v1"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/labels"
	"k8s.io/apimachinery/pkg/runtime/schema"
	appslisters "k8s.io/client-go/listers/apps/v1"
	corelisters "k8s.io/client-go/listers/core/v1"
)

var (
	rcKind = v1.SchemeGroupVersion.WithKind("ReplicationController")
	rsKind = appsv1.SchemeGroupVersion.WithKind("ReplicaSet")

	"k8s.io/apimachinery/pkg/util/strategicpatch"
	"k8s.io/apimachinery/pkg/util/wait"
	informers "k8s.io/client-go/informers/core/v1"
	clientset "k8s.io/client-go/kubernetes"
	listers "k8s.io/client-go/listers/core/v1"
	"k8s.io/client-go/tools/cache"
	"k8s.io/client-go/util/workqueue"
	"k8s.io/kubernetes/pkg/controller"

	"k8s.io/klog/v2"
)

```

Isso fará com que tags seja uma lista de itens mesmo sem declarar o tipo dos elementos desta lista.

## Campos do tipo Lista com um parâmetro de tipo

Mas o Python tem uma maneira específica de declarar listas com tipos internos ou "parâmetros de tipo":

### Importe `List` do typing

Primeiramente, importe `List` do módulo `typing` que já vem por padrão no Python:

```Python hl_lines="1"

package ensurer

import (
	flowcontrolv1 "k8s.io/api/flowcontrol/v1"
	"k8s.io/apimachinery/pkg/api/equality"
	flowcontrolclient "k8s.io/client-go/kubernetes/typed/flowcontrol/v1"
	flowcontrollisters "k8s.io/client-go/listers/flowcontrol/v1"
	flowcontrolapisv1 "k8s.io/kubernetes/pkg/apis/flowcontrol/v1"
)

See the License for the specific language governing permissions and
limitations under the License.
*/

package oom

// This is a struct instead of an interface to allow injection of process ID listers and
// applying OOM score in tests.
// TODO: make this an interface, and inject a mock ioutil struct for testing.
type OOMAdjuster struct {
	pidLister                 func(cgroupName string) ([]int, error)

	client "k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset/typed/apiextensions/v1"
	informers "k8s.io/apiextensions-apiserver/pkg/client/informers/externalversions/apiextensions/v1"
	listers "k8s.io/apiextensions-apiserver/pkg/client/listers/apiextensions/v1"
	apierrors "k8s.io/apimachinery/pkg/api/errors"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
	"k8s.io/apimachinery/pkg/util/wait"

// with a bit less boilerplate.
//
// Informer/Lister classes are thin wrappers providing a type-safe interface
// over regular interface{}-based Informers/Listers
//
// Controller[T] provides a reusable way to reconcile objects out of an informer
// using the tried and true controller design pattern found all over k8s
// codebase based upon syncFunc/reconcile

	listers "k8s.io/apiextensions-apiserver/pkg/client/listers/apiextensions/v1"
	"k8s.io/apiextensions-apiserver/pkg/controller/openapi/builder"
)

// Controller watches CustomResourceDefinitions and publishes validation schema
type Controller struct {
	crdLister  listers.CustomResourceDefinitionLister
	crdsSynced cache.InformerSynced

	informers "k8s.io/apiextensions-apiserver/pkg/client/informers/externalversions/apiextensions/v1"
	listers "k8s.io/apiextensions-apiserver/pkg/client/listers/apiextensions/v1"
)

// ConditionController is maintaining the NonStructuralSchema condition.
type ConditionController struct {
	crdClient client.CustomResourceDefinitionsGetter

	crdLister listers.CustomResourceDefinitionLister
	crdSynced cache.InformerSynced