{* ../../docs_src/path_operation_configuration/tutorial006.py hl[16] *}

Sie wird in der interaktiven Dokumentation gut sichtbar als deprecated markiert werden:

<img src="/img/tutorial/path-operation-configuration/image04.png">

{* ../../docs_src/path_operation_configuration/tutorial006.py hl[16] *}

Он будет четко помечен как устаревший в интерактивной документации:

<img src="/img/tutorial/path-operation-configuration/image04.png">

Проверьте, как будут выглядеть устаревшие и не устаревшие *операции пути*:

     * This algorithm is due to the paper "Everything we know about CRC but [are] afraid to forget"
     * by Kadatch and Jenkins, 2010.
     */

    Crc32cHasher() {
      super(16);
    }

    private boolean finished = false;

    /*
     * This trick allows us to avoid having separate states for "first four ints" and "all other

        this.numberOfMessages = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        this.messageLength = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        this.data = new byte[len - 16];
        if (this.data.length > 0) {
            System.arraycopy(buffer, bufferIndex, this.data, 0, this.data.length);
        }
        return bufferIndex - start;
    }

            this.type = bufferStream.readInt();
            switch (this.type) {
            case KERB_CHECKSUM_HMAC_MD5:
                this.checksum = new byte[16];
                break;
            case HMAC_SHA1_96_AES128:
            case HMAC_SHA1_96_AES256:
                this.checksum = new byte[12];
                break;
            default:

        // NAME_LEN
        if (buf.length < i + NAME_LEN_SIZE) {
            throw new IllegalArgumentException();
        }
        len = 0xff000000 & buf[i++] << 24;
        len |= 0x00ff0000 & buf[i++] << 16;
        len |= 0x0000ff00 & buf[i++] << 8;
        len |= 0x000000ff & buf[i++];

        // NAME
        if (buf.length < i + len) {
            throw new IllegalArgumentException();
        }

接下来，使用 `__init__` 声明用于**参数化**依赖项的实例参数：

{* ../../docs_src/dependencies/tutorial011.py hl[7] *}

本例中，**FastAPI** 不使用 `__init__`，我们要直接在代码中使用。

## 创建实例

使用以下代码创建类实例：

{* ../../docs_src/dependencies/tutorial011.py hl[16] *}

这样就可以**参数化**依赖项，它包含 `checker.fixed_content` 的属性 - `"bar"`。

## 把实例作为依赖项

然后，不要再在 `Depends(checker)` 中使用 `Depends(FixedContentQueryChecker)`， 而是要使用 `checker`，因为依赖项是类实例 - `checker`，不是类。

pkg crypto/tls, const Ed25519 = 2055
pkg crypto/tls, const Ed25519 SignatureScheme
pkg crypto/x509, const Ed25519 = 4
pkg crypto/x509, const Ed25519 PublicKeyAlgorithm
pkg crypto/x509, const PureEd25519 = 16
pkg crypto/x509, const PureEd25519 SignatureAlgorithm
pkg database/sql, method (*Conn) Raw(func(interface{}) error) error
pkg database/sql, method (*NullInt32) Scan(interface{}) error

If you need to mark a *path operation* as <abbr title="obsolete, recommended not to use it">deprecated</abbr>, but without removing it, pass the parameter `deprecated`:

{* ../../docs_src/path_operation_configuration/tutorial006.py hl[16] *}

It will be clearly marked as deprecated in the interactive docs:

<img src="/img/tutorial/path-operation-configuration/image04.png">

Check how deprecated and non-deprecated *path operations* look like:

	for i in {1..2}; do
		aws --endpoint-url http://localhost:"$start_port" s3api upload-part \
			--upload-id "$uploadId" --bucket bucket --key obj-1 \
			--part-number "$i" --body ./file-5mib
	done
	for i in {1..6}; do
		find ${WORK_DIR}/disk${i}/.minio.sys/multipart/ -type f -name "part.1" -delete
	done
	cat <<EOF >parts.json
{
    "Parts": [
        {
            "PartNumber": 1,