{* ../../docs_src/dependencies/tutorial011_an_py39.py hl[22] *}

/// tip | Tipp

Das alles mag gekünstelt wirken. Und es ist möglicherweise noch nicht ganz klar, welchen Nutzen das hat.

Diese Beispiele sind bewusst einfach gehalten, zeigen aber, wie alles funktioniert.

In den Kapiteln zum Thema Sicherheit gibt es Hilfsfunktionen, die auf die gleiche Weise implementiert werden.

Andere gebräuchliche Begriffe für dieselbe Idee der „Abhängigkeitsinjektion“ sind:

* Ressourcen
* Provider
* Services
* Injectables
* Komponenten

## **FastAPI**-Plugins { #fastapi-plug-ins }

Donc :

```Python
q: Union[str, None] = Query(default=None)
```

... rend le paramètre optionnel, et est donc équivalent à :

```Python
q: Union[str, None] = None
```

Mais déclare explicitement `q` comme étant un paramètre de requête.

/// info

// If any of the supplied actions are allowed it will be successful.
// If nil ObjectLayer is returned, the operation is not permitted.
// When nil ObjectLayer has been returned an error has always been sent to w.
func validateAdminReq(ctx context.Context, w http.ResponseWriter, r *http.Request, actions ...policy.AdminAction) (ObjectLayer, auth.Credentials) {
	// Get current object layer instance.
	objectAPI := newObjectLayerFn()

```mermaid
    graph LR
        
        gradle["Gradle CLI client"]
    
        gradlew["Gradlew CLI client"]
    
        subgraph IDE    
            tapi["Tooling API client"]
        end
        
        daemon["Gradle daemon"]
        gradle --> daemon
        gradlew --> daemon
        tapi --> daemon
        
        worker["Worker process"]
        daemon --> worker

    rev: v6.0.0
    hooks:
      - id: check-added-large-files
        args: ['--maxkb=750']
      - id: check-toml
      - id: check-yaml
        args:
        - --unsafe
      - id: end-of-file-fixer
      - id: trailing-whitespace

  - repo: local
    hooks:
      - id: local-ruff-check
        name: ruff check
        entry: uv run ruff check --force-exclude --fix --exit-non-zero-on-fix

	dst := src[:0]
	for _, s := range src {
		pos, end := s.Offset, s.endOffset()
		pos += blockPadding(+pos) // Round-up to nearest blockSize
		if end != size {
			end -= blockPadding(-end) // Round-down to nearest blockSize
		}
		if pos < end {
			dst = append(dst, sparseEntry{Offset: pos, Length: end - pos})
		}
	}
	return dst
}

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;

/**
 * Integration tests for the complete upgrade workflow.
 * These tests verify end-to-end behavior with real strategy implementations.
 */
@DisplayName("Upgrade Workflow Integration")
class UpgradeWorkflowIntegrationTest {

    @TempDir
    Path tempDir;

    private Apply applyGoal;

        "install", "org.apache.maven.plugins:maven-install-plugin:" + INSTALL_PLUGIN_VERSION + ":install",
        "deploy", "org.apache.maven.plugins:maven-deploy-plugin:" + DEPLOY_PLUGIN_VERSION + ":deploy"
    };
    // END SNIPPET: jar

    @Inject
    public JarLifecycleMappingProvider() {
        super(BINDINGS);
    }

        "install", "org.apache.maven.plugins:maven-install-plugin:" + INSTALL_PLUGIN_VERSION + ":install",
        "deploy", "org.apache.maven.plugins:maven-deploy-plugin:" + DEPLOY_PLUGIN_VERSION + ":deploy"
    };
    // END SNIPPET: war

    @Inject
    public WarLifecycleMappingProvider() {
        super(BINDINGS);
    }