// It is possible to have a disconnected client in this tiny window of time.
func CheckPortAvailability(host, port string, opts TCPOptions) (err error) {
	lc := &net.ListenConfig{
		Control: func(network, address string, c syscall.RawConn) error {
			c.Control(func(fdPtr uintptr) {
				if opts.Interface != "" {
					// When interface is specified look for specifically port availability on
					// the specified interface if any.

func (srv *Server) UseCustomLogger(l *log.Logger) *Server {
	srv.ErrorLog = l
	return srv
}

// UseTCPOptions use custom TCP options on raw socket
func (srv *Server) UseTCPOptions(opts TCPOptions) *Server {
	srv.TCPOptions = opts
	return srv
}

// NewServer - creates new HTTP server using given arguments.
func NewServer(addrs []string) *Server {
	httpServer := &Server{
		Addrs: addrs,
	}

type dynamicTimeoutOpts struct {
	timeout       time.Duration
	minimum       time.Duration
	retryInterval time.Duration
}

func newDynamicTimeoutWithOpts(opts dynamicTimeoutOpts) *dynamicTimeout {
	dt := newDynamicTimeout(opts.timeout, opts.minimum)
	dt.retryInterval = opts.retryInterval
	return dt
}

// newDynamicTimeout returns a new dynamic timeout initialized with timeout value

	for i, test := range getDefaultOptsTests {
		opts, err := getDefaultOpts(test.headers, test.copySource, test.metadata)
		if test.err != err {
			t.Errorf("Case %d: expected err: %v , actual err: %v", i, test.err, err)
		}
		if err == nil {
			if opts.ServerSideEncryption == nil && test.encryptionType != "" {
				t.Errorf("Case %d: expected opts to be of %v encryption type", i, test.encryptionType)
			}

	core := minio.Core{Client: sclnt}
	sobj, _, _, err := core.GetObject(context.Background(), sourceBucket, srcCtnt.Key, opts)
	if err != nil {
		fmt.Printf("unreadable on source: %s (%s)\n", srcCtnt.Key, err)
		return false
	}

	tobj, _, _, err := core.GetObject(context.Background(), targetBucket, tgtCtnt.Key, opts)
	if err != nil {
		fmt.Printf("unreadable on target: %s (%s)\n", tgtCtnt.Key, err)
		return false
	}

      opts->session_options.options,
      static_cast<tensorflow::ContextDevicePlacementPolicy>(
          opts->device_placement_policy),
      opts->async, device_mgr.release(),
      /*device_mgr_owned*/ true, std::move(r),
      /*cluster_flr=*/nullptr,
      /*collective_executor_mgr=*/nullptr,
      /*run_eager_op_as_function=*/opts->run_eager_op_as_function,

func WithRealm(realm string) Option {
	return func(p *KeycloakProvider) {
		p.realm = realm
	}
}

// KeyCloak initializes a new keycloak provider
func KeyCloak(opts ...Option) (Provider, error) {
	p := &KeycloakProvider{}

	for _, opt := range opts {
		opt(p)
	}

	if p.adminURL == "" {
		return nil, errors.New("Admin URL cannot be empty")
	}

	_, err := url.Parse(p.adminURL)
	if err != nil {

		return errors.New("update already in progress")
	}
	defer updateInProgress.Store(0)

	transport := getUpdateTransport(30 * time.Second)
	opts := selfupdate.Options{
		Hash:     crypto.SHA256,
		Checksum: sha256Sum,
	}

	if err := opts.CheckPermissions(); err != nil {
		return AdminError{
			Code:       AdminUpdateApplyFailure,

	return
}

// Begin begins a transaction with any transaction options opts
func (db *DB) Begin(opts ...*sql.TxOptions) *DB {
	var (
		// clone statement
		tx  = db.getInstance().Session(&Session{Context: db.Statement.Context, NewDB: db.clone == 1})
		opt *sql.TxOptions
		err error
	)

	if len(opts) > 0 {
		opt = opts[0]
	}

	ctx := tx.Statement.Context
	if db.DefaultTransactionTimeout > 0 {

			return nil, err
		}

		key, err := mtls.ParsePrivateKey(env.Get(EnvKMSAPIKey, ""))
		if err != nil {
			return nil, err
		}

		var rootCAs *x509.CertPool
		if opts != nil && opts.CADir != "" {
			rootCAs, err = certs.GetRootCAs(opts.CADir)
			if err != nil {
				return nil, err
			}
		}

		client, err := kms.NewClient(&kms.Config{
			Endpoints: endpoints,
			APIKey:    key,
			TLS: &tls.Config{