// Remove from cache to force refresh
                entry.removeChild(childName);
                break;
                
            case DIRECTORY_RENAMED:
                // Full invalidation needed
                entry.invalidate();
                break;
        }
    }
    
    public void handleDirectoryLeaseBreak(Smb2LeaseKey leaseKey, int newState) {

    * 使用 Pydantic 模型時，你可以把資料結構分層設計，並且用 Python 的 `List` 和 `Dict` 等型別來定義。
    * 驗證器讓我們可以輕鬆地定義和檢查複雜的資料結構，並把它們轉換成 JSON Schema 進行記錄。
    * 你可以擁有深層**巢狀的 JSON** 物件，並對它們進行驗證和註釋。
* **可擴展**：
    * Pydantic 讓我們可以定義客製化的資料型別，或者你可以使用帶有 validator 裝飾器的方法來擴展模型中的驗證功能。

	PartNumber          int                 // only useful in case of GetObject/HeadObject
	CheckPrecondFn      CheckPreconditionFn // only set during GetObject/HeadObject/CopyObjectPart preconditional valuation
	EvalMetadataFn      EvalMetadataFn      // only set for retention settings, meant to be used only when updating metadata in-place.

## Àṣàyàn Àwọn Àfikún Ìgbẹ́kẹ̀lé Kóòdù

Èyí tí Pydantic ń lò:

* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email-validator</code></a> - fún ifọwọsi ímeèlì.
* <a href="https://docs.pydantic.dev/latest/usage/pydantic_settings/" target="_blank"><code>pydantic-settings</code></a> - fún ètò ìsàkóso.

	if err != nil {
		t.Fatalf("unable create credential, %s", err)
	}

	globalActiveCred = creds

	globalIAMSys.Init(ctx, objLayer, globalEtcdClient, 2*time.Second)

	// List of test cases for validating http request authentication.
	testCases := []struct {
		req     *http.Request
		s3Error APIErrorCode
	}{
		// When request is unsigned, access denied is returned.

No significa "`one_person` es la **clase** llamada `Person`".

## Modelos Pydantic

<a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic</a> es un paquete de Python para realizar la validación de datos.

Declaras la "forma" de los datos como clases con atributos.

Y cada atributo tiene un tipo.

                }
                if (decKey != null) {
                    SecureKeyManager.secureWipe(decKey);
                }
            }
        } catch (Exception e) {
            log.error("Error validating key lengths", e);
            return false;
        }
    }

    /**
     * Helper class to hold encryption results
     */
    private static class EncryptionResult {

        when(fh.acquire()).thenReturn(fh);
        when(fh.isValid()).thenReturn(true, false); // first true, then false

        handle.ensureOpen();
        assertTrue(handle.isOpen());

        // Simulate invalidation
        assertFalse(handle.isOpen(), "Becomes not open when underlying handle invalid");

        // After close, report stale
        handle.close();

		0, nil, s.accessKey, s.secretKey, s.signer)
	c.Assert(err, nil)
	// executing the HTTP request.
	response, err = s.client.Do(request)
	c.Assert(err, nil)
	// validating the response status code.
	c.Assert(response.StatusCode, http.StatusOK)
	// reading the response body.
	// response body is expected to have the copied content of the first uploaded object.

	_, ok := supportedS3AuthTypes[aType]
	return ok
}

// setAuthMiddleware to validate authorization header for the incoming request.
func setAuthMiddleware(h http.Handler) http.Handler {
	// handler for validating incoming authorization headers.
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		tc, ok := r.Context().Value(mcontext.ContextTraceKey).(*mcontext.TraceCtxt)

		aType := getRequestAuthType(r)