type NetworkPolicy struct {
	metav1.TypeMeta

	// +optional
	metav1.ObjectMeta

	// spec represents the specification of the desired behavior for this NetworkPolicy.
	// +optional
	Spec NetworkPolicySpec
}

// PolicyType describes the NetworkPolicy type
// This type is beta-level in 1.8
type PolicyType string

const (

	// +optional
	// +listType=map
	// +listMapKey=type
	Conditions []metav1.Condition `json:"conditions,omitempty" protobuf:"bytes,3,rep,name=conditions"`
}

// ValidatingAdmissionPolicyConditionType is the condition type of admission validation policy.
type ValidatingAdmissionPolicyConditionType string

// TypeChecking contains results of type checking the expressions in the
// ValidatingAdmissionPolicy

	// In returns the type of a function type's i'th input parameter.
	// It panics if the type's Kind is not Func.
	// It panics if i is not in the range [0, NumIn()).
	In(i int) Type

	// Key returns a map type's key type.
	// It panics if the type's Kind is not Map.
	Key() Type

	// Len returns an array type's length.
	// It panics if the type's Kind is not Array.
	Len() int

Todo **FastAPI** está basado en estos type hints, lo que le da muchas ventajas y beneficios.

Pero, así nunca uses **FastAPI** te beneficiarás de aprender un poco sobre los type hints.

!!! note "Nota"
    Si eres un experto en Python y ya lo sabes todo sobre los type hints, salta al siguiente capítulo.

<img src="/img/python-types/image03.png">

## Mais motivação

Marque esta função, ela já possui type hints:

```Python hl_lines="1"
{!../../../docs_src/python_types/tutorial003.py!}
```

Como o editor conhece os tipos de variáveis, você não apenas obtém a conclusão, mas também as verificações de erro:

<img src="/img/python-types/image04.png">

Şimdi programı sıfırdan birdaha yazdığınızı hayal edin.

Aynı noktada, `Ctrl+Space` ile otomatik tamamlamayı tetiklediniz  ve şunu görüyorsunuz:

<img src="/img/python-types/image02.png">

Aradığınızı bulana kadar seçenekleri kaydırabilirsiniz:

<img src="/img/python-types/image03.png">

## Daha fazla motivasyon

Bu fonksiyon, zaten tür belirteçlerine sahip:

```Python hl_lines="1"

	StartTime *metav1.Time `json:"startTime,omitempty" protobuf:"bytes,7,opt,name=startTime"`
}

type PodCondition struct {
	// Type is the type of the condition.
	// Currently only Ready.
	// More info: http://kubernetes.io/docs/user-guide/pod-states#pod-conditions
	Type PodConditionType `json:"type" protobuf:"bytes,1,opt,name=type,casttype=PodConditionType"`
	// Status is the status of the condition.
	// Can be True, False, Unknown.

В тот же момент вы пытаетесь запустить автодополнение с помощью `Ctrl+Space` и вы видите:

<img src="/img/python-types/image02.png">

При этом вы можете просматривать варианты, пока не найдёте подходящий:

<img src="/img/python-types/image03.png">

## Больше мотивации

Проверьте эту функцию, она уже имеет аннотации типов:

```Python hl_lines="1"

	// type is the type of this event (Normal, Warning), new types could be added in the future.
	// It is machine-readable.
	// This field cannot be empty for new Events.
	Type string `json:"type,omitempty" protobuf:"bytes,11,opt,name=type"`

	// deprecatedSource is the deprecated field assuring backward compatibility with core.v1 Event type.
	// +optional

	// +optional
	DefaultMode *int32
}

// VolumeProjection that may be projected along with other supported volume types
type VolumeProjection struct {
	// all types below are the supported types for projection into the same volume

	// information about the secret data to project
	Secret *SecretProjection
	// information about the downwardAPI data to project