```

////

## 运行

/// info | "说明"

先安装 <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>。

安装命令： `pip install python-multipart`。

这是因为 **OAuth2** 使用**表单数据**发送 `username` 与 `password`。

///

用下面的命令运行该示例：

<div class="termy">

```console
$ uvicorn main:app --reload

/// info

Para receber arquivos compartilhados, primeiro  instale <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

E.g. `pip install python-multipart`.

Isso se deve por que arquivos enviados são enviados como "dados de formulário".

///

## Importe `File`

Importe `File` e `UploadFile` do `fastapi`:

//// tab | Python 3.9+

    /**
     * @return the common/negotiated capabilieis
     */
    public final int getCommonCapabilities () {
        return this.commonCapabilities;
    }


    /**
     * @return initial security blob
     */
    public byte[] getSecurityBlob () {
        return this.securityBuffer;
    }


    /**
     * @return the maxTransactSize
     */
    public int getMaxTransactSize () {

		Handle StatelessHandlerFn
		// OutCapacity is the output capacity on the caller.
		// If <= 0 capacity will be 1.
		OutCapacity int
	}

	// StreamHandlerFn must process a request with an optional initial payload.
	// It must keep consuming from 'in' until it returns.
	// 'in' and 'out' are independent.
	// The handler should never close out.
	// Buffers received from 'in'  can be recycled with PutByteBuffer.

    return Ints.saturatedCast(5L + arraySize + (arraySize / 10));
  }

  /**
   * Creates an {@code ArrayList} instance backed by an array with the specified initial size;
   * simply delegates to {@link ArrayList#ArrayList(int)}.
   *
   * <p><b>Note:</b> this method is now unnecessary and should be treated as deprecated. Instead,

Primeiro, certifique-se de criar seu [ambiente virtual](../virtual-environments.md){.internal-link target=_blank}, ativá-lo e, em seguida, instalar o `sqlmodel`:

<div class="termy">

```console
$ pip install sqlmodel
---> 100%
```

</div>

## Criar o App com um Único Modelo

Vamos criar a primeira versão mais simples do app com um único modelo **SQLModel**.

}

// JSON is a wrapper around a T object that can be serialized.
// There is an internal value
type JSON[T any] struct {
	p   *JSONPool[T]
	val *T
}

// NewJSON returns a new JSONPool.
// No initial value is set.
func (p *JSONPool[T]) NewJSON() *JSON[T] {
	var j JSON[T]
	j.p = p
	return &j
}

// NewJSONWith returns a new JSON with the provided value.

	}
	cfg, err := mesh.ApplyMeshConfigDefaults(configYaml)
	if err != nil {
		err = multierror.Append(err, fmt.Errorf("istioctl version %s cannot parse mesh config.  Install istioctl from the latest Istio release",
			version.Info.Version))
	}
	return cfg, err
}

// grabs the raw values from the ConfigMap. These are encoded as JSON.

But in case you needed it for an advanced scenario, you can add custom headers:

```Python hl_lines="14"
{!../../docs_src/handling_errors/tutorial002.py!}
```

## Install custom exception handlers

You can add custom exception handlers with <a href="https://www.starlette.io/exceptions/" class="external-link" target="_blank">the same exception utilities from Starlette</a>.

val Project.gradleInstallPath: Provider<String>
    get() = gradleProperty(GRADLE_INSTALL_PATH).orElse(
        provider<String> {
            throw RuntimeException("You can't install without setting the $GRADLE_INSTALL_PATH property.")
        }
    )


val Project.rerunAllTests: Provider<Boolean>
    get() = gradleProperty(RERUN_ALL_TESTS).map { true }.orElse(false)