ioStats:       map[string]driveIOStatMetrics{},
		}

		currentStats := getCurrentDriveIOStats()
		now := time.Now().UTC()

		prevDriveIOStatsMu.Lock()
		if prevDriveIOStats != nil {
			duration := now.Sub(prevDriveIOStatsRefreshedAt)
			if duration.Seconds() > 1 {
				for d, cs := range currentStats {
					if ps, found := prevDriveIOStats[d]; found {
						v.ioStats[d] = getDriveIOStatMetrics(getDiffStats(ps, cs), duration)

	var avg float64
	if l.successRequestCount > 0 {
		avg = l.rttMsSum / float64(l.successRequestCount)
	}
	now := time.Now().UTC()
	return Metrics{
		LastReachableSecs:   now.Sub(o.serviceMetrics.LastCheckSuccess).Seconds(),
		LastUnreachableSecs: now.Sub(o.serviceMetrics.LastCheckFailure).Seconds(),
		TotalRequests:       l.failedRequestCount + l.successRequestCount,
		FailedRequests:      l.failedRequestCount,
		AvgSuccRTTMs:        avg,

{* ../../docs_src/dependencies/tutorial007_py310.py hl[3,5] *}

## Utiliser des sous-dépendances avec `yield` { #sub-dependencies-with-yield }

Vous pouvez avoir des sous-dépendances et des « arbres » de sous-dépendances de toute taille et forme, et certaines ou toutes peuvent utiliser `yield`.

        rules.put("//A", "href");
        transformer.setChildUrlRuleMap(rules);

        final ResponseData responseData = new ResponseData();
        responseData.setUrl("http://example.com/dir/sub/test.html");
        responseData.setCharSet("UTF-8");

        final List<String> result = transformer.getAnchorList(document, responseData);
        assertEquals(1, result.size());

{* ../../docs_src/dependencies/tutorial007_py310.py hl[3,5] *}

## Подзависимости с `yield` { #sub-dependencies-with-yield }

Вы можете иметь подзависимости и "деревья" подзависимостей любого размера и формы, и любая из них или все они могут использовать `yield`.

Se você passar algo "chamável" como uma dependência do **FastAPI**, o framework irá analisar os parâmetros desse "chamável" e processá-los da mesma forma que os parâmetros de uma *função de operação de rota*. Incluindo as sub-dependências.

Isso também se aplica a objetos chamáveis que não recebem nenhum parâmetro. Da mesma forma que uma *função de operação de rota* sem parâmetros.

		AccessKey: "newroot",
		SecretKey: "newroot123",
	})
	if err == nil {
		c.Fatalf("restricted STS account was able to create service account bypassing sub-policy!")
	}
}

func (s *TestSuiteIAM) TestSTSWithTags(c *check) {
	ctx, cancel := context.WithTimeout(context.Background(), testDefaultTimeout)
	defer cancel()

	bucket := getRandomBucketName()

{* ../../docs_src/dependencies/tutorial007_py310.py hl[3,5] *}

## Unterabhängigkeiten mit `yield` { #sub-dependencies-with-yield }

Sie können Unterabhängigkeiten und „Bäume“ von Unterabhängigkeiten beliebiger Größe und Form haben, und einige oder alle davon können `yield` verwenden.

				if !oauth2Token.Valid() {
					return nil, errors.New("invalid token")
				}

				return &credentials.WebIdentityToken{
					Token:  oauth2Token.Extra("id_token").(string),
					Expiry: int(oauth2Token.Expiry.Sub(time.Now().UTC()).Seconds()),
				}, nil
			}
		}

		sts, err := credentials.NewSTSWebIdentity(stsEndpoint, getWebTokenExpiry)
		if err != nil {

### Подзависимости { #sub-dependencies }