In these cases, it could make sense to store the tags in an `Enum`.

**FastAPI** supports that the same way as with plain strings:

```Python hl_lines="1  8-10  13  18"
{!../../../docs_src/path_operation_configuration/tutorial002b.py!}
```

## Summary and description

You can add a `summary` and `description`:

    /**
     * This type is syntactically identical to "multipart/mixed", but the semantics are different.
     * In particular, in a digest, the default `Content-Type` value for a body part is changed from
     * "text/plain" to "message/rfc822".
     */
    @JvmField
    val DIGEST = "multipart/digest".toMediaType()

    /**
     * This type is syntactically identical to "multipart/mixed", but the semantics are different.

=== "Python 3.8+"

    ```Python hl_lines="1  20"
    {!> ../../../docs_src/extra_models/tutorial004.py!}
    ```

## Response with arbitrary `dict`

You can also declare a response using a plain arbitrary `dict`, declaring just the type of the keys and values, without using a Pydantic model.

This is useful if you don't know the valid field/attribute names (that would be needed for a Pydantic model) beforehand.

MINIO_NOTIFY_KAFKA_SASL_USERNAME               (string)                    username for SASL/PLAIN or SASL/SCRAM authentication
MINIO_NOTIFY_KAFKA_SASL_PASSWORD               (string)                    password for SASL/PLAIN or SASL/SCRAM authentication
MINIO_NOTIFY_KAFKA_SASL_MECHANISM              (plain*|sha256|sha512)      sasl authentication mechanism, default 'plain'

Do mesmo modo, você pode sobreescrever o `HTTPException`.

Por exemplo, você pode querer retornar uma *response* em *plain text* ao invés de um JSON para os seguintes erros:

```Python hl_lines="3-4  9-11  22"
{!../../../docs_src/handling_errors/tutorial004.py!}
```

!!! note "Detalhes Técnicos"

/plugins/kapt3/kapt3-compiler/tests-gen/ "Kotlin Compiler Core" "Kotlin JVM"
/plugins/kapt4/ "Kotlin JVM"
/plugins/kotlinx-serialization/ Sergey.Shanshin Leonid.Startsev
/plugins/js-plain-objects/ Artem.Kobzar
/libraries/tools/js-plain-objects Artem.Kobzar
/plugins/lombok/ "Kotlin Compiler Core"
/plugins/noarg/ "Kotlin Compiler Core"
/plugins/parcelize/ "Kotlin Compiler Core"

```

### `HTMLResponse`

Nimmt Text oder Bytes entgegen und gibt eine HTML-Response zurück, wie Sie oben gelesen haben.

### `PlainTextResponse`

Nimmt Text oder Bytes entgegen und gibt eine Plain-Text-Response zurück.

```Python hl_lines="2  7  9"
{!../../../docs_src/custom_response/tutorial005.py!}
```

### `JSONResponse`

                </mxCell>
                <mxCell id="85" value="&lt;span style=&quot;font-family: &amp;#34;roboto&amp;#34; ; font-size: 24px&quot;&gt;Plain response from: someapp.example.com&lt;/span&gt;" style="shape=hexagon;perimeter=hexagonPerimeter2;whiteSpace=wrap;html=1;fixedSize=1;strokeColor=#9673a6;strokeWidth=3;fillColor=#e1d5e7;" parent="1" vertex="1">

- Modified command line errors (for example, `kubectl list` -> `unknown command`) that were printed as log message with escaped line breaks instead of a multi-line plain text, making the error hard to read. ([#107044](https://github.com/kubernetes/kubernetes/pull/107044), [@pohly](https://github.com/pohly))

    val mediaType = parse("text/plain; charset=\"!@#$%^&*()\"")
    assertNull(mediaType.charsetName())
  }

  @Test fun testUnsupportedCharset() {
    val mediaType = parse("text/plain; charset=utf-wtf")
    assertNull(mediaType.charsetName())
  }

  @Test fun testCharsetNameIsDoubleQuotedAndSingleQuoted() {
    val mediaType = parse("text/plain;charset=\"'utf-8'\"")
    assertNull(mediaType.charsetName())