var (
		// We check every 15 seconds if the disk is writable and we can read back.
		checkEvery = 15 * time.Second

		// If the disk has completed an operation successfully within last 5 seconds, don't check it.
		skipIfSuccessBefore = 5 * time.Second
	)

	// if disk max timeout is smaller than checkEvery window
	// reduce checks by a second.
	if globalDriveConfig.GetMaxTimeout() <= checkEvery {

    return {"item_id": item_id, "q": q}
```

**Lưu ý**:

Nếu bạn không biết, xem phần _"In a hurry?"_ về <a href="https://fastapi.tiangolo.com/async/#in-a-hurry" target="_blank">`async` và `await` trong tài liệu này</a>.

</details>

### Chạy ứng dụng

Chạy server như sau:

<div class="termy">

```console
$ uvicorn main:app --reload

import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * GWT emulated version of {@link com.google.common.collect.ImmutableSortedMap}. It's a thin wrapper
 * around a {@link java.util.TreeMap}.
 *
 * @author Hayward Chan
 */
@ElementTypesAreNonnullByDefault
public final class ImmutableSortedMap<K, V> extends ForwardingImmutableMap<K, V>
    implements SortedMap<K, V> {

  @SuppressWarnings("unchecked")

// # optional flags based filtering criteria
// # for all objects
// flags:
//   filter:
//     newerThan: "7d" # match objects newer than this value (e.g. 7d10h31s)
//     olderThan: "7d" # match objects older than this value (e.g. 7d10h31s)
//     createdAfter: "date" # match objects created after "date"
//     createdBefore: "date" # match objects created before "date"
//     tags:

		"Suppress reporting a message code on a specific resource. Values are supplied in the form "+
			`<code>=<resource> (e.g. '--suppress "IST0102=DestinationRule primary-dr.default"'). Can be repeated. `+
			`You can include the wildcard character '*' to support a partial match (e.g. '--suppress "IST0102=DestinationRule *.default" ).`)
	analysisCmd.PersistentFlags().DurationVar(&analysisTimeout, "timeout", 30*time.Second,

	// cmd represents the upgradeCheck command
	cmd := &cobra.Command{
		Use:   "precheck",
		Short: "Check whether Istio can safely be installed or upgraded",
		Long:  `precheck inspects a Kubernetes cluster for Istio install and upgrade requirements.`,
		Example: `  # Verify that Istio can be installed or upgraded
  istioctl x precheck

  # Check only a single namespace
  istioctl x precheck --namespace default

pkg math/rand, func Read([]uint8) (int, error)
pkg math/rand, method (*Rand) Read([]uint8) (int, error)
pkg net, type DNSError struct, IsTemporary bool
pkg net, type Dialer struct, Cancel <-chan struct
pkg net/http, const MethodConnect = "CONNECT"
pkg net/http, const MethodConnect ideal-string
pkg net/http, const MethodDelete = "DELETE"
pkg net/http, const MethodDelete ideal-string

	lifeCycle *lifecycle.Lifecycle `msg:"-"`

	// optional updates channel.
	// If set updates will be sent regularly to this channel.
	// Will not be closed when returned.
	updates     chan<- dataUsageEntry `msg:"-"`
	replication replicationConfig     `msg:"-"`
}

func (e *dataUsageEntry) addSizes(summary sizeSummary) {
	e.Size += summary.totalSize
	e.Versions += summary.versions

// license that can be found in the LICENSE file.

// This wrapper uses syscall.Flock to prevent concurrent adb commands,
// so for now it only builds on platforms that support that system call.
// TODO(#33974): use a more portable library for file locking.

//go:build darwin || dragonfly || freebsd || illumos || linux || netbsd || openbsd

// This program can be used as go_android_GOARCH_exec by the Go tool.

		return err
	}
	k, err := kube.NewClient(kube.NewClientConfigForRestConfig(config), "")
	if err != nil {
		return err
	}
	sa.AddRunningKubeSourceWithRevision(k, revision, false)
	res, err := sa.Analyze(make(chan struct{}))
	if err != nil {
		return err
	}
	relevantMessages := diag.Messages{}
	for _, msg := range res.Messages.FilterOutLowerThan(diag.Error) {