* Share database connections.
* Enforce security, authentication, role requirements, etc.
* And many other things...

All these, while minimizing code repetition.

## First Steps

Let's see a very simple example. It will be so simple that it is not very useful, for now.

But this way we can focus on how the **Dependency Injection** system works.

### Create a dependency, or "dependable"

Let's first focus on the dependency.

import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Creates map entries using sample keys and sample values.
 *
 * @author Jesse Wilson
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public abstract class TestMapEntrySetGenerator<
        K extends @Nullable Object, V extends @Nullable Object>

                              anyOf:
                              - required:
                                - simple
                              - required:
                                - consistentHash
                          - required:
                            - simple
                          - required:
                            - consistentHash
                          properties:

    public Object[] getArgs() {
        return args;
    }

    @Override
    public String getMessage() {
        return message;
    }

    /**
     * Returns a simple message without a message code.
     *
     * @return simple message without message code
     */
    public final String getSimpleMessage() {
        return simpleMessage;
    }

<a href="{{ sponsor.url }}" target="_blank" title="{{ sponsor.title }}"><img src="{{ sponsor.img }}" style="border-radius:15px"></a>
{% endfor %}
{% endif %}

<!-- /sponsors -->

<a href="https://fastapi.tiangolo.com/fastapi-people/#sponsors" class="external-link" target="_blank">Other sponsors</a>

## Opinions

							},
						},
						TrafficPolicy: &v1alpha32.TrafficPolicy{
							LoadBalancer: &v1alpha32.LoadBalancerSettings{
								LbPolicy: &v1alpha32.LoadBalancerSettings_Simple{Simple: v1alpha32.LoadBalancerSettings_LEAST_REQUEST},
							},
							ConnectionPool:   &v1alpha32.ConnectionPoolSettings{Tcp: &v1alpha32.ConnectionPoolSettings_TCPSettings{MaxConnections: 10}},

* 👥 Update FastAPI People. PR [#2202](https://github.com/tiangolo/fastapi/pull/2202) by [@github-actions[bot]](https://github.com/apps/github-actions).
* ♻️ Update FastAPI People GitHub Action to send the PR as github-actions. PR [#2201](https://github.com/tiangolo/fastapi/pull/2201) by [@tiangolo](https://github.com/tiangolo).

  public void testLibrary() {
    runTest("analysis/analysis-api/testData/components/scopeProvider/packageScope/library.kt");
  }

  @Test
  @TestMetadata("simple.kt")
  public void testSimple() {
    runTest("analysis/analysis-api/testData/components/scopeProvider/packageScope/simple.kt");
  }

      gateway: |
{{ .Files.Get "files/gateway-injection-template.yaml" | trim | indent 8 }}
{{- end }}
{{- if not (hasKey .Values.sidecarInjectorWebhook.templates "grpc-simple") }}
      grpc-simple: |
{{ .Files.Get "files/grpc-simple.yaml" | trim | indent 8 }}
{{- end }}
{{- if not (hasKey .Values.sidecarInjectorWebhook.templates "grpc-agent") }}
      grpc-agent: |
{{ .Files.Get "files/grpc-agent.yaml" | trim | indent 8 }}

     *
     * @return A map of lifecycles, indexed on id
     */
    public Map<String, Lifecycle> getPhaseToLifecycleMap() {
        // If people are going to make their own lifecycles then we need to tell people how to namespace them correctly
        // so that they don't interfere with internally defined lifecycles.

        Map<String, Lifecycle> phaseToLifecycleMap = new HashMap<>();