"summary": "Deadpool's favorite app. Nuff said.",
            "description": "\nChimichangApp API helps you do awesome stuff. 🚀\n\n## Items\n\nYou can **read items**.\n\n## Users\n\nYou will be able to:\n\n* **Create users** (_not implemented_).\n* **Read users** (_not implemented_).\n",
            "termsOfService": "http://example.com/terms/",
            "contact": {
                "name": "Deadpoolio the Amazing",

FastAPI sabe esto, y producirá documentación OpenAPI que establece que no hay un response body.

///

## Acerca de los códigos de estado HTTP { #about-http-status-codes }

/// note | Nota

Si ya sabes qué son los códigos de estado HTTP, salta a la siguiente sección.

///

En HTTP, envías un código de estado numérico de 3 dígitos como parte del response.

	if err != nil {
		t.Fatalf("Unable to initialize new http request %s", err)
	}
	return req
}

// This is similar to mustNewRequest but additionally the request
// is signed with AWS Signature V4, fails if not able to do so.
func mustNewSignedRequest(method string, urlStr string, contentLength int64, body io.ReadSeeker, t *testing.T) *http.Request {
	req := mustNewRequest(method, urlStr, contentLength, body, t)
	cred := globalActiveCred

/**
 * Evaluator for plugin parameters expressions. Content surrounded by <code>${</code> and <code>}</code> is evaluated.
 * Recognized values are:
 * <table border="1">
 * <caption>Expression matrix</caption>
 * <tr><th>expression</th>                     <th></th>               <th>evaluation result</th></tr>

For example, imagine that you want to return an HTTP status code of "OK" `200` by default.

But if the data didn't exist, you want to create it, and return an HTTP status code of "CREATED" `201`.

But you still want to be able to filter and convert the data you return with a `response_model`.

For those cases, you can use a `Response` parameter.

## Use a `Response` parameter { #use-a-response-parameter }

此外，我们为 hero 创建了一个 `secret_name` ，但到目前为止，我们在各处都返回了它，这就不太**秘密**了……😅

我们将通过添加一些**额外的模型**来解决这些问题，而 SQLModel 将在这里大放异彩。✨

### 创建多个模型

在 **SQLModel** 中，任何含有 `table=True` 属性的模型类都是一个**表模型**。

任何不含有 `table=True` 属性的模型类都是**数据模型**，这些实际上只是 Pydantic 模型（附带一些小的额外功能）。🤓

有了 SQLModel，我们就可以利用**继承**来在所有情况下**避免重复**所有字段。

#### `HeroBase` - 基类

我们从一个 `HeroBase` 模型开始，该模型具有所有模型**共享的字段**：

* `name`

     * </ol>
     * <p>
     * <strong>Concrete Examples:</strong>
     * </p>
     * <p>
     * Given a project at {@code /home/user/myproject} with {@link ProjectScope#MAIN}:
     * </p>
     * <table class="striped">
     *   <caption>Target Path Resolution Examples</caption>
     *   <thead>
     *     <tr>
     *       <th>Configuration ({@code targetPath()})</th>
     *       <th>Output Directory</th>

	if count1 != count2 {
		t.Errorf("No user should not be deleted by invalid SQL")
	}
}

func TestSetAndGet(t *testing.T) {
	if value, ok := DB.Set("hello", "world").Get("hello"); !ok {
		t.Errorf("Should be able to get setting after set")
	} else if value.(string) != "world" {
		t.Errorf("Set value should not be changed")
	}

	if _, ok := DB.Get("non_existing"); ok {
		t.Errorf("Get non existing key should return error")
	}

Dieses Beispiel ist jedoch immer noch gültig und zeigt, wie mit den internen Komponenten interagiert wird.

///

Wir können denselben Ansatz auch verwenden, um in einem Exceptionhandler auf den Requestbody zuzugreifen.

Alles, was wir tun müssen, ist, den Request innerhalb eines `try`/`except`-Blocks zu handhaben:

{* ../../docs_src/custom_request_and_route/tutorial002_an_py310.py hl[14,16] *}

{* ../../docs_src/query_params/tutorial005_py39.py hl[6:7] *}

Aquí el parámetro de query `needy` es un parámetro de query requerido de tipo `str`.

Si abres en tu navegador una URL como:

```
http://127.0.0.1:8000/items/foo-item
```

...sin agregar el parámetro requerido `needy`, verás un error como:

```JSON
{
  "detail": [
    {