wantErr: `Each form field that you specify in a form must appear in the list of policy conditions. "X-Amz-Meta-Name" not specified in the policy.`,
		},
		{
			name:    "unknown key XAmzChecksumAlgo is error as it does not appear in policy",
			fv:      defaultFormVals.Clone().Set(http.CanonicalHeaderKey(xhttp.AmzChecksumAlgo), "algo-val"),

                                    <div class="form-group row">
                                        <label for="name" class="col-sm-2 text-sm-right col-form-label"><la:message
                                                key="labels.name"/></label>
                                        <div class="col-sm-10">
                                            <la:text styleId="name" property="name" styleClass="form-control"/>

/// info | 정보

`Form`은 `Body`에서 직접 상속되는 클래스입니다.

///

/// tip | 팁

폼 본문을 선언할 때, 폼이 없으면 매개변수가 쿼리 매개변수나 본문(JSON) 매개변수로 해석(interpret)되기 때문에 `Form`을 명시적으로 사용해야 합니다.

///

## "폼 필드"에 대해

HTML 폼(`<form></form>`)이 데이터를 서버로 보내는 방식은 일반적으로 해당 데이터에 대해 "특수" 인코딩을 사용하며, 이는 JSON과 다릅니다.

**FastAPI**는 JSON 대신 올바른 위치에서 해당 데이터를 읽습니다.

/// note | 기술 세부사항

Sie können mehrere `File`- und `Form`-Parameter in einer *Pfadoperation* deklarieren, aber Sie können nicht gleichzeitig auch `Body`-Felder deklarieren, welche Sie als JSON erwarten, da der Request den Body mittels `multipart/form-data` statt `application/json` kodiert.

Das ist keine Limitation von **FastAPI**, sondern Teil des HTTP-Protokolls.

///

## Zusammenfassung

                                        <la:text styleId="token" property="token" styleClass="form-control"/>
                                    </div>
                                </div>
                                <div class="form-group row">
                                    <label for="segmentation" class="col-sm-3 text-sm-right col-form-label"><la:message

👆 💪 🔬 📁 & 📨 🏑 🎏 🕰 ⚙️ `File` & `Form`.

/// info

📨 📂 📁 &amp; /⚖️ 📨 📊, 🥇 ❎ <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

🤶 Ⓜ. `pip install python-multipart`.

///

## 🗄 `File` &amp; `Form`

{* ../../docs_src/request_forms_and_files/tutorial001.py hl[1] *}

## 🔬 `File` &amp; `Form` 🔢

✍ 📁 &amp; 📨 🔢 🎏 🌌 👆 🔜 `Body` ⚖️ `Query`:

                                                     rows="5"/>
                                    </div>
                                </div>
                                <div class="form-group row">
                                    <label for="boostExpr" class="col-sm-3 text-sm-right col-form-label"><la:message

```

///

## Importar `File` y `Form`

{* ../../docs_src/request_forms_and_files/tutorial001_an_py39.py hl[3] *}

## Definir parámetros `File` y `Form`

Crea parámetros de archivo y formulario de la misma manera que lo harías para `Body` o `Query`:

{* ../../docs_src/request_forms_and_files/tutorial001_an_py39.py hl[10:12] *}

Это не ограничение **Fast API**, это часть протокола HTTP.

///

## Резюме

	}
	return false
}

// S3 docs: "Each form field that you specify in a form (except x-amz-signature, file, policy, and field names
// that have an x-ignore- prefix) must appear in the list of conditions."
// https://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-HTTPPOSTConstructPolicy.html
// keyInPolicyExceptions - list of keys that, when present in the form, can be missing in the conditions of the policy.