```

////

This means:

* The variable `prices` is a `dict`:
    * The keys of this `dict` are of type `str` (let's say, the name of each item).
    * The values of this `dict` are of type `float` (let's say, the price of each item).

#### Union { #union }

You can declare that a variable can be any of **several types**, for example, an `int` or a `str`.

This PR will be imported into Gerrit with the title and first
comment (this text) used to generate the subject and body of
the Gerrit change.

**Please ensure you adhere to every item in this list.**

More info can be found at https://github.com/golang/go/wiki/CommitMessage

+ The PR title is formatted as follows: `net/http: frob the quux before blarfing`
  + The package name goes before the colon

		}

		// Remove filename which is the meta file.
		item.transformMetaDir()

		fivs, err := getFileInfoVersions(buf, item.bucket, item.objectPath(), false)
		metaDataPoolPut(buf)
		if err != nil {
			res["err"] = err.Error()
			return sizeSummary{}, errSkipFile
		}

		versioned := vcfg != nil && vcfg.Versioned(item.objectPath())
		objInfos := make([]ObjectInfo, len(fivs.Versions))

```

</div>

Abrar seu browser em: <a href="http://127.0.0.1:8000" class="external-link" target="_blank">http://127.0.0.1:8000</a>.

Lá você pode definir:

* O "Item ID", usado na rota.
* O "Token" usado como um parâmetro de consulta.

/// tip | Dica

Perceba que a consulta `token` será manipulada por uma dependência.

///

	s.tr = append(s.tr, tr)
}

func (s *Stack) Next() ScanToken {
	tos := s.tr[len(s.tr)-1]
	tok := tos.Next()
	for tok == scanner.EOF && len(s.tr) > 1 {
		tos.Close()
		// Pop the topmost item from the stack and resume with the next one down.
		s.tr = s.tr[:len(s.tr)-1]
		tok = s.Next()
	}
	return tok
}

func (s *Stack) Text() string {
	return s.tr[len(s.tr)-1].Text()
}

## Alias-Parameter

Stellen Sie sich vor, der Parameter soll `item-query` sein.

Wie in:

```
http://127.0.0.1:8000/items/?item-query=foobaritems
```

Aber `item-query` ist kein gültiger Name für eine Variable in Python.

Am ähnlichsten wäre `item_query`.

Aber Sie möchten dennoch exakt `item-query` verwenden.

<img src="/img/python-types/image05.png">

Ohne Typen ist das fast unmöglich zu erreichen.

Beachten Sie, dass die Variable `item` eines der Elemente in der Liste `items` ist.

Und trotzdem weiß der Editor, dass es sich um ein `str` handelt, und bietet entsprechende Unterstützung.

#### Tupel und Menge

## Alias para parámetros

Imagina que quieres que el parámetro sea `item-query`.

Como en:

```
http://127.0.0.1:8000/items/?item-query=foobaritems
```

Pero `item-query` no es un nombre de variable válido en Python.

Lo más cercano sería `item_query`.

Pero aún necesitas que sea exactamente `item-query`...

			go expiryWorker(&wg, workerReady, workers[0], &gotExpired)
			<-workerReady

			item := scannerItem{
				Path:        obj,
				bucket:      bucket,
				prefix:      "",
				objectName:  obj,
				lifeCycle:   lc,
				replication: test.replCfg,
			}

			var (
				sizeS sizeSummary
				gots  []ObjectInfo
			)

{* ../../docs_src/query_params_str_validations/tutorial008.py hl[13] *}

## エイリアスパラメータ

パラメータに`item-query`を指定するとします.

以下のような感じです:

```
http://127.0.0.1:8000/items/?item-query=foobaritems
```

しかし、`item-query`は有効なPythonの変数名ではありません。

最も近いのは`item_query`でしょう。

しかし、どうしても`item-query`と正確に一致している必要があるとします...

それならば、`alias`を宣言することができます。エイリアスはパラメータの値を見つけるのに使用されます: