continue
		}

		tcpListener, ok := l.(*net.TCPListener)
		if !ok {
			listenErrs[i] = fmt.Errorf("unexpected listener type found %v, expected net.TCPListener", l)
			if opts.Trace != nil {
				opts.Trace(fmt.Sprint("net.TCPListener: ", listenErrs[i].Error()))
			}
			continue
		}
		if opts.Trace != nil {
			opts.Trace(fmt.Sprint("adding listener to ", tcpListener.Addr()))
		}

		t.Fatalf("unable to create listener. %v", err)
	}
	defer l.Close()
	serverAddr := l.Addr().String()

	tcpListener, ok := l.(*net.TCPListener)
	if !ok {
		t.Fatalf("failed to assert to net.TCPListener")
	}

	var wg sync.WaitGroup
	wg.Add(1)
	go func() {
		defer wg.Done()

		tcpConn, terr := tcpListener.AcceptTCP()
		if terr != nil {
			t.Errorf("failed to accept new connection. %v", terr)
			return
		}

const (
	// HTTPListener identifies a listener as being of HTTP type by the presence of an HTTP connection manager filter
	HTTPListener = wellknown.HTTPConnectionManager

	// TCPListener identifies a listener as being of TCP type by the presence of TCP proxy filter
	TCPListener = wellknown.TCPProxy

	IPMatcher = "type.googleapis.com/xds.type.matcher.v3.IPMatcher"
)

pkg math/big, method (*Float) Sqrt(*Float) *Float
pkg math/big, method (*Int) CmpAbs(*Int) int
pkg math/rand, func Shuffle(int, func(int, int))
pkg math/rand, method (*Rand) Shuffle(int, func(int, int))
pkg net, method (*TCPListener) SyscallConn() (syscall.RawConn, error)
pkg net, method (*UnixListener) SyscallConn() (syscall.RawConn, error)
pkg net/smtp, method (*Client) Noop() error
pkg os, func IsTimeout(error) bool

pkg net, method (*TCPConn) Write([]uint8) (int, error)
pkg net, method (*TCPListener) Accept() (Conn, error)
pkg net, method (*TCPListener) AcceptTCP() (*TCPConn, error)
pkg net, method (*TCPListener) Addr() Addr
pkg net, method (*TCPListener) Close() error
pkg net, method (*TCPListener) File() (*os.File, error)
pkg net, method (*TCPListener) SetDeadline(time.Time) error
pkg net, method (*UDPAddr) Network() string