=== "Python 3.10+"

    ```Python hl_lines="13-21"
    {!> ../../../docs_src/schema_extra_example/tutorial001_py310.py!}
    ```

=== "Python 3.8+"

    ```Python hl_lines="15-23"
    {!> ../../../docs_src/schema_extra_example/tutorial001.py!}
    ```

    assertThat(keySet).containsExactly(9, 0, 1, 2, 10, 11, 12, 6, 7, 8);

    // evict 9, 0, 1
    getAll(cache, asList(13, 14, 15));
    CacheTesting.drainRecencyQueues(cache);
    assertThat(keySet).containsExactly(2, 10, 11, 12, 6, 7, 8, 13, 14, 15);
  }

  public void testEviction_weightedLru() {
    // test weighted lru within a single segment

        // 9
        "id:".encodeUtf8(),
        // 10
        "id\r\n".encodeUtf8(),
        // 11
        "id\r".encodeUtf8(),
        // 12
        "id\n".encodeUtf8(),
        // 13
        "event: ".encodeUtf8(),
        // 14
        "event:".encodeUtf8(),
        // 15
        "event\r\n".encodeUtf8(),
        // 16
        "event\r".encodeUtf8(),
        // 17

	VALIGNQ $13, Z3, Z8, K3, Z3                        // 62f3bd4b03db0d
	VALIGNQ $13, Z27, Z8, K3, Z3                       // 6293bd4b03db0d
	VALIGNQ $13, -7(CX), Z8, K3, Z3                    // 62f3bd4b0399f9ffffff0d
	VALIGNQ $13, 15(DX)(BX*4), Z8, K3, Z3              // 62f3bd4b039c9a0f0000000d
	VALIGNQ $13, Z3, Z2, K3, Z3                        // 62f3ed4b03db0d

## 导入 Path

首先，从 `fastapi` 导入 `Path`：

=== "Python 3.10+"

    ```Python hl_lines="1  3"
    {!> ../../../docs_src/path_params_numeric_validations/tutorial001_an_py310.py!}
    ```

=== "Python 3.9+"

    ```Python hl_lines="1  3"
    {!> ../../../docs_src/path_params_numeric_validations/tutorial001_an_py39.py!}
    ```

=== "Python 3.8+"

				err = msgp.WrapError(err)
				return
			}
		}
	}
	return
}

// EncodeMsg implements msgp.Encodable
func (z *metacache) EncodeMsg(en *msgp.Writer) (err error) {
	// map header, size 13
	// write "end"
	err = en.Append(0x8d, 0xa3, 0x65, 0x6e, 0x64)
	if err != nil {
		return
	}
	err = en.WriteTime(z.ended)
	if err != nil {
		err = msgp.WrapError(err, "ended")
		return
	}

	if filepath.Base(s) != "gorm.io" {
		s = dir
	}
	return filepath.ToSlash(s) + "/"
}

// FileWithLineNum return the file name and line number of the current file
func FileWithLineNum() string {
	pcs := [13]uintptr{}
	// the third caller usually from gorm internal
	len := runtime.Callers(3, pcs[:])
	frames := runtime.CallersFrames(pcs[:len])
	for i := 0; i < len; i++ {
		// second return value is "more", not "ok"

	_ = x[HandlerLockForceUnlock-6]
	_ = x[HandlerWalkDir-7]
	_ = x[HandlerStatVol-8]
	_ = x[HandlerDiskInfo-9]
	_ = x[HandlerNSScanner-10]
	_ = x[HandlerReadXL-11]
	_ = x[HandlerReadVersion-12]
	_ = x[HandlerDeleteFile-13]
	_ = x[HandlerDeleteVersion-14]
	_ = x[HandlerUpdateMetadata-15]
	_ = x[HandlerWriteMetadata-16]
	_ = x[HandlerCheckParts-17]
	_ = x[HandlerRenameData-18]
	_ = x[HandlerRenameFile-19]
	_ = x[HandlerReadAll-20]

For example, you could add a custom header `X-Process-Time` containing the time in seconds that it took to process the request and generate a response:

```Python hl_lines="10  12-13"
{!../../../docs_src/middleware/tutorial001.py!}
```

## Other middlewares

Sie könnten beispielsweise einen benutzerdefinierten Header `X-Process-Time` hinzufügen, der die Zeit in Sekunden enthält, die benötigt wurde, um den Request zu verarbeiten und eine Response zu generieren:

```Python hl_lines="10  12-13"
{!../../../docs_src/middleware/tutorial001.py!}
```

## Andere Middlewares