override fun matches(header: DerHeader): Boolean = true

      override fun toDer(
        writer: DerWriter,
        value: Any?,
      ) {
        // If we don't understand this hint, encode the body as a byte string. The byte string
        // will include a tag and length header as a prefix.
        val adapter = chooser(writer.typeHint) as DerAdapter<Any?>?
        when {

        separate_input_output_schemas: Annotated[
            bool,
            Doc(
                """
                Whether to generate separate OpenAPI schemas for request body and
                response body when the results would be more precise.

                This is particularly useful when automatically generating clients.

                For example, if you have a model like:

Es kann nicht sehr gut mit verschachtelten Modellen umgehen. Wenn es sich beim JSON-Body im Request also um ein JSON-Objekt mit inneren Feldern handelt, die wiederum verschachtelte JSON-Objekte sind, kann er nicht richtig dokumentiert und validiert werden.

/// check | Inspirierte **FastAPI**

        byte[] buffer = new byte[512];
        int headerStart = 50;

        // Encode the full message to set headerStart
        request.encode(buffer, headerStart);

        // Then - verify the body was written correctly
        int bodyOffset = headerStart + Smb2Constants.SMB2_HEADER_LENGTH;

        // Verify structure size (25)
        assertEquals(25, SMBUtil.readInt2(buffer, bodyOffset));

def is_scalar_field(field: ModelField) -> bool:
    from fastapi import params

    return shared.field_annotation_is_scalar(
        field.field_info.annotation
    ) and not isinstance(field.field_info, params.Body)


def copy_field_info(*, field_info: FieldInfo, annotation: Any) -> FieldInfo:
    cls = type(field_info)
    merged_field_info = cls.from_annotation(annotation)
    new_field_info = copy(field_info)

* 在 [PyCharm](https://www.jetbrains.com/pycharm/) 中:

![editor support](https://fastapi.tiangolo.com/img/pycharm-completion.png)

你將能進行程式碼補齊，這是在之前你可能曾認為不可能的事。例如，請求 JSON body（可能是巢狀的）中的鍵 `price`。

這樣比較不會輸錯鍵名，不用來回翻看文件，也不用來回滾動尋找你最後使用的 `username` 或者 `user_name`。

### 簡潔 { #short }

FastAPI 為你提供了**預設值**，讓你不必在初期進行繁瑣的配置，一切都可以自動運作。如果你有更具體的需求，則可以進行調整和自定義，

但預設情況下，一切都「直接可用」。

Her SQLModel modeli aynı zamanda bir Pydantic modeli olduğu için, Pydantic modelleriyle kullanabildiğiniz **type annotation**’larda aynı şekilde kullanabilirsiniz.

Örneğin `Hero` tipinde bir parametre tanımlarsanız, bu parametre **JSON body**’den okunur.

Aynı şekilde, bunu fonksiyonun **return type**’ı olarak da tanımlayabilirsiniz; böylece verinin şekli otomatik API docs arayüzünde görünür.

		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidMaxParts), r.URL)
		return
	}

	var (
		md5hex              = clientETag.String()
		sha256hex           = ""
		reader    io.Reader = r.Body
		s3Error   APIErrorCode
	)
	if s3Error = isPutActionAllowed(ctx, rAuthType, bucket, object, r, policy.PutObjectAction); s3Error != ErrNone {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
		return

        // Session ID
        SMBUtil.writeInt8(0, buffer, headerStart + 40);
        // Signature
        Arrays.fill(buffer, headerStart + 48, headerStart + 64, (byte) 0);

        // Write READ response body
        int dataLength = 20;
        int dataRemaining = 0;
        int dataOffsetFromHeader = 80;

        // Structure size (17 = 0x11)
        SMBUtil.writeInt2(17, buffer, bodyStart);

* `@app.delete()`
* vb.

{* ../../docs_src/response_model/tutorial001_py310.py hl[17,22,24:27] *}

/// note | Not

`response_model`’in "decorator" metodunun (`get`, `post` vb.) bir parametresi olduğuna dikkat edin. Body ve diğer parametreler gibi, sizin *path operation function*’ınızın parametresi değildir.

///