Только стандартный **Python**.

Например, для `int`:

```Python
item_id: int
```

или для более сложной модели `Item`:

```Python
item: Item
```

... и с этим единственным объявлением вы получаете:

* Поддержка редактора, в том числе:
    * Автозавершение.
    * Проверка типов.
* Валидация данных:

                                                   styleClass="form-control">
                                            <c:forEach var="item" items="${protocolSchemeItems}">
                                                <la:option value="${f:u(item.value)}">${f:h(item.label)}</la:option>
                                            </c:forEach>
                                        </la:select>

And if you check all the available Schemas (JSON Schemas) in OpenAPI, you will see that there are two, one `Item-Input` and one `Item-Output`.

For `Item-Input`, `description` is **not required**, it doesn't have a red asterisk.

But for `Item-Output`, `description` is **required**, it has a red asterisk.

<div class="screenshot">
<img src="/img/tutorial/separate-openapi-schemas/image04.png">

خط زیر را به این صورت تغییر دهید:

```Python
    return {"item_name": item.name, "item_id": item_id}
```

از:

```Python
        ... "item_name": item.name ...
```

به:

```Python
        ... "item_price": item.price ...
```

در حین تایپ کردن توجه کنید که چگونه ویرایش‌گر، ویژگی‌های کلاس  `Item` را تشخیص داده و به تکمیل خودکار آنها کمک می‌کند:

ge=".content-wrapper iframe",pe=".content-wrapper.iframe-mode .nav",me=".content-wrapper.iframe-mode .navbar-nav",ve=me+" .nav-item",_e=me+" .nav-link",be=".content-wrapper.iframe-mode .tab-content",ye=be+" .tab-empty",Ce=be+" .tab-loading",we=be+" .tab-pane",xe=".main-sidebar .nav-item > a.nav-link",Ie=".main-header .nav-item a.nav-link",Te=".main-header a.dropdown-item",Se="iframe-mode",je="iframe-mode-fullscreen",ke={onTabClick:function(e){return e},onTabChanged:function(e){return e},onTabCre...

Just standard **Python**.

For example, for an `int`:

```Python
item_id: int
```

or for a more complex `Item` model:

```Python
item: Item
```

...and with that single declaration you get:

* Editor support, including:
    * Completion.
    * Type checks.
* Validation of data:

Apenas **Python** padrão.

Por exemplo, para um `int`:

```Python
item_id: int
```

ou para um modelo mais complexo, `Item`:

```Python
item: Item
```

...e com essa única declaração você tem:

* Suporte ao Editor, incluindo:
    * Completação.
    * Verificação de tipos.
* Validação de dados:
    * Erros automáticos e claros quando o dado é inválido.

                        <ol class="breadcrumb float-sm-right">
                            <li class="breadcrumb-item active"><la:link href="/admin/elevateword">
                                <la:message key="labels.elevate_word_link_list"/>
                            </la:link></li>
                            <li class="breadcrumb-item active"><a href="#"><la:message
                                    key="labels.elevate_word_link_upload"/></a></li>

    /** The key of the message: {item} must be false. */
    public static final String CONSTRAINTS_AssertFalse_MESSAGE = "{constraints.AssertFalse.message}";

    /** The key of the message: {item} must be true. */
    public static final String CONSTRAINTS_AssertTrue_MESSAGE = "{constraints.AssertTrue.message}";

    /** The key of the message: {item} must be less than {value}. */

						}
					}
				}
				for obj := range walkCh {
					if obj.Item.DeleteMarker || !obj.Item.VersionPurgeStatus.Empty() || obj.Item.Size >= int64(smallerThan) {
						slowCh <- obj
						continue
					}

					batch = append(batch, obj.Item)

					if len(batch) < *r.Source.Snowball.Batch {
						continue
					}
					writeFn(batch)