from fastapi.testclient import TestClient

global_context: ContextVar[dict[str, Any]] = ContextVar("global_context", default={})  # noqa: B039


class Session:
    def __init__(self) -> None:
        self.open = True


async def dep_session() -> Any:
    s = Session()
    yield s
    s.open = False
    global_state = global_context.get()
    global_state["session_closed"] = True

	vc, err := sys.Get(bucket)
	if err != nil {
		logger.CriticalIf(GlobalContext, err)
	}
	return vc.PrefixEnabled(prefix)
}

// Suspended suspended versioning?
func (sys *BucketVersioningSys) Suspended(bucket string) bool {
	vc, err := sys.Get(bucket)
	if err != nil {
		logger.CriticalIf(GlobalContext, err)
	}
	return vc.Suspended()
}

		objLayer := newObjectLayerFn()
		if objLayer == nil {
			return u, err
		}

		// Collect cluster level object metrics.
		u, err = loadDataUsageFromBackend(GlobalContext, objLayer)
		return u, err
	}
	return cachevalue.NewFromFunc(1*time.Minute,
		cachevalue.Opts{ReturnLastGood: true},
		loadDataUsage)
}

func newESetHealthResultCache() *cachevalue.Cache[HealthResult] {

		if len(dui.BucketsUsage) > 0 {
			internalLogOnceIf(GlobalContext, fmt.Errorf("unable to retrieve usage information for bucket: %s, relying on older value cached in-memory: err(%v)", bucket, err), "bucket-usage-cache-"+bucket)
		} else {

	// Add new service requests here.
)

// Global service signal channel.
var globalServiceSignalCh = make(chan serviceSignal)

// GlobalContext context that is canceled when server is requested to shut down.
// cancelGlobalContext can be used to indicate server shutdown.
var GlobalContext, cancelGlobalContext = context.WithCancel(context.Background())

// restartProcess starts a new process passing it the active fd's. It

		return hh
	case HighwayHash256S:
		hh, _ := highwayhash.New(magicHighwayHash256Key) // New will never return error since key is 256 bit
		return hh
	default:
		logger.CriticalIf(GlobalContext, errors.New("Unsupported bitrot algorithm"))
		return nil
	}
}

// Available reports whether the given algorithm is available.
func (a BitrotAlgorithm) Available() bool {
	_, ok := bitrotAlgorithms[a]

			m.Aggregated.Net.NetStats = netStats
		}
	}
	if types.Contains(madmin.MetricsMem) {
		m.Aggregated.Mem = &madmin.MemMetrics{
			CollectedAt: UTCNow(),
		}
		m.Aggregated.Mem.Info = madmin.GetMemInfo(GlobalContext, byHostName)
	}
	if types.Contains(madmin.MetricsCPU) {
		m.Aggregated.CPU = &madmin.CPUMetrics{
			CollectedAt: UTCNow(),
		}
		cm, err := c.Times(false)
		if err != nil {

		if err != nil {
			continue
		}
		err = loadMRF(rc, m.opCh)
		if err != nil {
			continue
		}
		// finally delete the file after processing mrf entries
		localDrive.Delete(GlobalContext, minioMetaBucket, pathJoin(healMRFDir, "list.bin"), DeleteOptions{})
		break
	}
}

var healSleeper = newDynamicSleeper(5, time.Second, false)

// healRoutine listens to new disks reconnection events and

	if !locked { // We failed to get the lock
		// Decrement ref count since we failed to get the lock
		n.lockMapMutex.Lock()
		n.lockMap[resource].ref--
		if n.lockMap[resource].ref < 0 {
			logger.CriticalIf(GlobalContext, errors.New("resource reference count was lower than 0"))
		}
		if n.lockMap[resource].ref == 0 {
			// Remove from the map if there are no more references.
			delete(n.lockMap, resource)
		}

		logger.Info("Older config found but is not readable %s, proceeding to read config from other places", err)
	}
	if osIsNotExist(err) || osIsPermission(err) || len(data) == 0 {
		data, err = readConfig(GlobalContext, objAPI, configFile)
		if err != nil {
			// when config.json is not found, then we freshly initialize.
			if errors.Is(err, errConfigNotFound) {
				return newServerCfg()
			}
			return nil, err
		}