class BaseItem(BaseModel):
    description: str
    type: str


class CarItem(BaseItem):
    type: str = "car"


class PlaneItem(BaseItem):
    type: str = "plane"
    size: int


items = {
    "item1": {"description": "All my friends drive a low rider", "type": "car"},
    "item2": {
        "description": "Music is my aeroplane, it's my aeroplane",
        "type": "plane",
        "size": 5,
    },
}

## Campos do tipo Lista

Você pode definir um atributo como um subtipo. Por exemplo, uma `list` do Python:

```Python hl_lines="14"
{!../../docs_src/body_nested_models/tutorial001.py!}
```

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

  @JvmName("reifiedTag")
  inline fun <reified T : Any> tag(): T? = tag(T::class)

  /** Returns the tag attached with [type] as a key, or null if no tag is attached with that key. */
  fun <T : Any> tag(type: KClass<T>): T? = type.java.cast(tags[type])

  /**
   * Returns the tag attached with `Object.class` as a key, or null if no tag is attached with
   * that key.
   *

    }


    /**
     * 
     * @param pairs
     * @param type
     * @return whether the list contains a pair of that type
     */
    public static boolean contains ( List<AvPair> pairs, int type ) {
        if ( pairs == null ) {
            return false;
        }
        for ( AvPair p : pairs ) {
            if ( p.getType() == type ) {
                return true;
            }
        }

    for (Type type : getGenericExceptionTypes()) {
      // getGenericExceptionTypes() will never return a type that's not exception
      @SuppressWarnings("unchecked")
      TypeToken<? extends Throwable> exceptionType =
          (TypeToken<? extends Throwable>) TypeToken.of(type);
      builder.add(exceptionType);
    }
    return builder.build();
  }

    override fun settings(
      clearPrevious: Boolean,
      settings: Settings,
    ) {
      check(type == -1)
      this.type = Http2.TYPE_SETTINGS
      this.clearPrevious = clearPrevious
      this.settings = settings
    }

    override fun ackSettings() {
      check(type == -1)
      this.type = Http2.TYPE_SETTINGS
      this.ack = true
    }

    override fun headers(
      inFinished: Boolean,

//
// To use this, make a field which has RawExtension as its type in your external, versioned
// struct, and Object in your internal struct. You also need to register your
// various plugin types.
//
// // Internal package:
//
// 	type MyAPIObject struct {
// 		runtime.TypeMeta `json:",inline"`
// 		MyPlugin runtime.Object `json:"myPlugin"`
// 	}
//
// 	type PluginA struct {
// 		AOption string `json:"aOption"`
// 	}
//

import java.lang.annotation.Target;

/**
 * The presence of this annotation on a type indicates that the type may be used with the <a
 * href="http://code.google.com/webtoolkit/">Google Web Toolkit</a> (GWT). When applied to a method,
 * the return type of the method is GWT compatible. It's useful to indicate that an instance created
 * by factory methods has a GWT serializable type. In the following example,
 *
 * <pre>
 * {@literal @}GwtCompatible

     */
    @CanIgnoreReturnValue
    public <T extends B> Builder<B> putAll(Map<? extends Class<? extends T>, ? extends T> map) {
      for (Entry<? extends Class<? extends T>, ? extends T> entry : map.entrySet()) {
        Class<? extends T> type = entry.getKey();
        T value = entry.getValue();
        mapBuilder.put(type, cast(type, value));
      }

		return &sps
	}
	return s
}

type Roles []string

type Job struct {
	Title    string
	Number   int
	Location string
	IsIntern bool
}

type EncryptedString string

func (es *EncryptedString) Scan(ctx context.Context, field *schema.Field, dst reflect.Value, dbValue interface{}) (err error) {
	switch value := dbValue.(type) {
	case []byte: