Wir erstellen eine asynchrone Funktion `lifespan()` mit `yield` wie folgt:

{* ../../docs_src/events/tutorial003_py39.py hl[16,19] *}

	if !ok {
		t.Fatalf("should assign PreparedStatement Manager back to database when using PrepareStmt mode")
	}

	loopCount := 100
	var wg sync.WaitGroup
	var unexpectedError bool
	writerFinish := make(chan struct{})

	wg.Add(1)
	go func(id uint) {
		defer wg.Done()
		defer close(writerFinish)

		for j := 0; j < loopCount; j++ {
			var tmp User

     *         repository).
     */
    File getPomFile();

    /**
     * Sets the POM file of the project to build. Note that providing the path to a POM file via this method will make
     * the model builder operate in project mode. This mode is meant for effective models that are employed during the

	if o.Dialer == nil {
		return nil, fmt.Errorf("grid: Dialer not set")
	}
	if o.AuthFn == nil {
		return nil, fmt.Errorf("grid: AuthFn not set")
	}
	m := &Manager{
		ID:        uuid.New(),
		targets:   make(map[string]*Connection, len(o.Hosts)),
		local:     o.Local,
		authToken: o.AuthToken,
		routePath: o.RoutePath,
	}
	m.handlers.init()
	if ctx == nil {
		ctx = context.Background()
	}

			}

			nVers, v, e := decodeXLHeaders(v)
			if e != nil {
				return nil, e
			}
			type version struct {
				Idx      int
				Header   json.RawMessage
				Metadata json.RawMessage
			}
			versions := make([]version, nVers)
			e = decodeVersions(v, nVers, func(idx int, hdr, meta []byte) error {
				var header xlMetaV2VersionHeaderV2
				if _, e := header.UnmarshalMsg(hdr); e != nil {
					return e
				}

	}

	target := &MySQLTarget{
		id:         event.TargetID{ID: id, Name: "mysql"},
		args:       args,
		firstPing:  false,
		store:      queueStore,
		loggerOnce: loggerOnce,
		quitCh:     make(chan struct{}),
	}

	if target.store != nil {
		store.StreamItems(target.store, target, target.quitCh, target.loggerOnce)
	}

	return target, nil

        typeArguments.flatMap(::apiTypeKey) +
        bounds.flatMap(::apiTypeKey)
}


// TODO Policy for extensions with reified generics
//
// Goals
// - make the dsl predictable
// - prevent ambiguous overload situations
//
// Rules
// 1. an extension should either require no type parameters, a single reifeid type parameter, at call site

		expectErr      bool
	}{
		{"foo", "myobject", 0, []byte("foo"), false},
		{"foo", "myobject", 1, []byte("oo"), false},
		// file not found error.
		{"foo", "yourobject", 0, nil, true},
	}

	result := make([]byte, 100)
	for i, testCase := range testCases {
		result = result[testCase.offset:3]
		_, err := storage.ReadFile(t.Context(), testCase.volumeName, testCase.objectName, testCase.offset, result, nil)

	h.wg.Wait()
}

// New initializes a new logger target which
// sends log over http to the specified endpoint
func New(config Config) *Target {
	target := &Target{
		logCh:   make(chan any, config.QueueSize),
		kconfig: config,
		status:  statusOffline,
	}
	return target
}

// Type - returns type of the target
func (h *Target) Type() types.TargetType {
	return types.TargetKafka

		if idx := getRIndex(names, name); !cs[idx].remove {
			fns = append(fns, cs[idx].handler)
		}
	}

	return
}

func removeCallbacks(cs []*callback, nameMap map[string]bool) []*callback {
	callbacks := make([]*callback, 0, len(cs))
	for _, callback := range cs {
		if nameMap[callback.name] {
			continue
		}
		callbacks = append(callbacks, callback)
	}
	return callbacks