// Ensure trimmed history starts with a user message, not an assistant message
                if (start < messages.size() && ChatMessage.ROLE_ASSISTANT.equals(messages.get(start).getRole())) {
                    start = Math.max(0, start - 1);
                }
                final List<ChatMessage> trimmed = new ArrayList<>(messages.subList(start, messages.size()));
                messages.clear();

    mockResponse = mockResponse.setHeader("", Any())
    mockResponse.headers = headersOf()
    mockResponse.trailers = headersOf()
    mockResponse = mockResponse.removeHeader("")
    var body: Buffer? = mockResponse.getBody()
    mockResponse = mockResponse.setBody(Buffer())
    mockResponse = mockResponse.setChunkedBody(Buffer(), 0)
    mockResponse = mockResponse.setChunkedBody("", 0)
    var socketPolicy: SocketPolicy = mockResponse.socketPolicy

/**
 * Represents a maven plugin runtime
 *
 * @since 4.0.0
 */
@Experimental
public interface Plugin {

    @Nonnull
    org.apache.maven.api.model.Plugin getModel();

    @Nonnull
    PluginDescriptor getDescriptor();

    @Nonnull
    List<Lifecycle> getLifecycles();

    @Nonnull
    ClassLoader getClassLoader();

    @Nonnull
    Artifact getArtifact();

        this.model = model;
        this.request = request;
        this.problems = problems;
    }

    @Override
    public Model getModel() {
        return model;
    }

    @Override
    public ModelBuildingRequest getRequest() {
        return request;
    }

    @Override
    public ModelProblemCollector getProblems() {

  val result = mockwebserver3.MockResponse.Builder()
  val copyFromWebSocketListener = webSocketListener
  if (copyFromWebSocketListener != null) {
    result.webSocketUpgrade(copyFromWebSocketListener)
  }

  val body = getBody()
  if (body != null) result.body(body)

  for (pushPromise in pushPromises) {
    result.addPush(pushPromise.wrap())
  }

  result.settings(settings)
  result.status(status)
  result.headers(headers)

    }

    /**
     * getter
     */
    public MetadataGraphNode getEntry() {
        return entry;
    }

    /**
     * getter
     */
    public Collection<MetadataGraphNode> getNodes() {
        return nodes;
    }

## Ajouter une tâche d'arrière-plan { #add-the-background-task }

Dans votre *fonction de chemin d'accès*, passez votre fonction de tâche à l'objet de type `BackgroundTasks` (`background_tasks` ici) grâce à la méthode `.add_task()` :

{* ../../docs_src/background_tasks/tutorial001_py310.py hl[14] *}

`.add_task()` reçoit comme arguments :

* Une fonction de tâche à exécuter en arrière-plan (`write_notification`).

        assertEquals("3.0.0", mp.getSince());

        ComponentRequirement cr = md.getRequirements().get(0);

        assertEquals("org.codehaus.plexus.archiver.Archiver", cr.getRole());
        assertEquals("jar", cr.getRoleHint());
        assertEquals("jarArchiver", cr.getFieldName());

        ComponentDependency cd = pd.getDependencies().get(0);

    private List<String> fatals = new ArrayList<>();

    public SimpleProblemCollector() {}

    public SimpleProblemCollector(Model model) {
        this.model = model;
    }

    public Model getModel() {
        return model;
    }

    public List<String> getWarnings() {
        return warnings;
    }

    public List<String> getErrors() {
        return errors;
    }

	public final fun clearHeaders ()Lokhttp3/mockwebserver/MockResponse;
	public synthetic fun clone ()Ljava/lang/Object;
	public fun clone ()Lokhttp3/mockwebserver/MockResponse;
	public final fun getBody ()Lokio/Buffer;
	public final fun getBodyDelay (Ljava/util/concurrent/TimeUnit;)J
	public final fun getHeaders ()Lokhttp3/Headers;
	public final fun getHeadersDelay (Ljava/util/concurrent/TimeUnit;)J