# Klassen als Abhängigkeiten

Bevor wir tiefer in das **Dependency Injection** System eintauchen, lassen Sie uns das vorherige Beispiel verbessern.

## Ein `dict` aus dem vorherigen Beispiel

Im vorherigen Beispiel haben wir ein `dict` von unserer Abhängigkeit („Dependable“) zurückgegeben:

//// tab | Python 3.10+

```Python hl_lines="9"
{!> ../../docs_src/dependencies/tutorial001_an_py310.py!}
```

////

//// tab | Python 3.9+

                        entry.map.put(domain, new HashMap<String, CacheEntry<DfsReferralDataInternal>>());
                        if ( log.isTraceEnabled() ) {
                            log.trace("Inserting cache entry for domain " + domain + ": " + dr);
                        }
                        dr = dr.next();
                    }
                    while ( dr != start );

 * provides indexes and a comparison function, and this calls that function iteratively.
 *
 * @return the index of the match. If no match is found this is `(-1 - insertionPoint)`, where the
 *     inserting the element at `insertionPoint` will retain sorted order.
 */
inline fun binarySearch(
  position: Int,
  limit: Int,
  compare: (Int) -> Int,
): Int {
  // Do the binary searching bit.

	if valErr != nil {
		return nil, fmt.Errorf("annotation value error for value %s; annotationFound = %t: %v",
			"includeOutboundPorts", isFound, valErr)
	}
	// Add 15090 to sync with non-cni injection template
	// TODO: Revert below once https://github.com/istio/istio/pull/23037 or its follow up is merged.
	redir.excludeInboundPorts = strings.TrimSpace(redir.excludeInboundPorts)

 *  Fix: Don't attempt Brotli decompression if the response body is empty.


## Version 4.7.2

_2020-05-20_

 *  Fix: Don't crash inspecting whether the host platform is JVM or Android. With 4.7.0 and 4.7.1 we
    had a crash `IllegalArgumentException: Not a Conscrypt trust manager` because we depended on
    initialization order of companion objects.

	if err != nil {
		return "", fmt.Errorf("failed to create tag webhook: %w", err)
	}

	if opts.Tag == DefaultRevisionName {
		if !opts.Generate {
			// deactivate other istio-injection=enabled injectors if using default revisions.
			err := DeactivateIstioInjectionWebhook(ctx, client.Kube())
			if err != nil {
				return "", fmt.Errorf("failed deactivating existing default revision: %w", err)
			}
		}

		lines = append(lines, fmt.Sprintf("%s=%s", k, shellescape.Quote(v)))
	}
	sort.Strings(lines)
	return strings.Join(lines, "\n") + "\n"
}

// extractClusterIDFromInjectionConfig can extract clusterID from injection configmap
func extractClusterIDFromInjectionConfig(kubeClient kube.CLIClient, istioNamespace string) (string, error) {
	injectionConfigMap := "istio-sidecar-injector"
	// Case with multiple control planes

### Wstrzykiwanie Zależności

FastAPI zawiera niezwykle łatwy w użyciu, ale niezwykle potężny system <abbr title='Po angielsku: Dependency Injection. Znane również jako "components", "resources", "services", "providers"'><strong>Wstrzykiwania Zależności</strong></abbr>.

* Nawet zależności mogą mieć zależności, tworząc hierarchię lub **"graf" zależności**.

               },
               "expr": "sum (rate(sidecar_injection_failure_total[$__rate_interval]))",
               "legendFormat": "Failure"
            }
         ],
         "title": "Injection",
         "type": "timeseries"
      }
   ],
   "refresh": "15s",
   "schemaVersion": 39,
   "templating": {
      "list": [
         {
            "name": "datasource",

			}
		}
	}

	if match {
		reqMatchFacts := []string{}

		if route.Fault != nil {
			reqMatchFacts = append(reqMatchFacts, fmt.Sprintf("Fault injection %s", route.Fault.String()))
		}

		// TODO Consider adding Headers, SourceLabels

		for _, trafficMatch := range route.Match {
			reqMatchFacts = append(reqMatchFacts, renderMatch(trafficMatch))
		}