能否添加一个直接设置ClientHelloSpec的方法？

[1992w]

我有自定义ClientHelloSpec的需求，用SetTLSHandshake能解决，但能否新增一个设置ClientHelloSpec的方法，类似于下面这样：

utls.HelloCustom 支持自定义ClientHelloSpec

func (c *Client) SetTLSClientHelloSpec(spec *utls.ClientHelloSpec) *Client {
	fn := func(ctx context.Context, addr string, plainConn net.Conn) (conn net.Conn, tlsState *tls.ConnectionState, err error) {
		colonPos := strings.LastIndex(addr, ":")
		if colonPos == -1 {
			colonPos = len(addr)
		}
		hostname := addr[:colonPos]
		tlsConfig := c.GetTLSClientConfig()
		utlsConfig := &utls.Config{
			ServerName:                  hostname,
			Rand:                        tlsConfig.Rand,
			Time:                        tlsConfig.Time,
			RootCAs:                     tlsConfig.RootCAs,
			NextProtos:                  tlsConfig.NextProtos,
			ClientCAs:                   tlsConfig.ClientCAs,
			InsecureSkipVerify:          tlsConfig.InsecureSkipVerify,
			CipherSuites:                tlsConfig.CipherSuites,
			SessionTicketsDisabled:      tlsConfig.SessionTicketsDisabled,
			MinVersion:                  tlsConfig.MinVersion,
			MaxVersion:                  tlsConfig.MaxVersion,
			DynamicRecordSizingDisabled: tlsConfig.DynamicRecordSizingDisabled,
			KeyLogWriter:                tlsConfig.KeyLogWriter,
		}
		uconn := &uTLSConn{utls.UClient(plainConn, utlsConfig, utls.HelloCustom)}
		err = uconn.ApplyPreset(spec)
		if err != nil {
			return
		}
		err = uconn.BuildHandshakeState()
		if err != nil {
			return
		}
		err = uconn.HandshakeContext(ctx)
		if err != nil {
			return
		}
		cs := uconn.Conn.ConnectionState()
		conn = uconn
		tlsState = &tls.ConnectionState{
			Version:                     cs.Version,
			HandshakeComplete:           cs.HandshakeComplete,
			DidResume:                   cs.DidResume,
			CipherSuite:                 cs.CipherSuite,
			NegotiatedProtocol:          cs.NegotiatedProtocol,
			NegotiatedProtocolIsMutual:  cs.NegotiatedProtocolIsMutual,
			ServerName:                  cs.ServerName,
			PeerCertificates:            cs.PeerCertificates,
			VerifiedChains:              cs.VerifiedChains,
			SignedCertificateTimestamps: cs.SignedCertificateTimestamps,
			OCSPResponse:                cs.OCSPResponse,
			TLSUnique:                   cs.TLSUnique,
		}
		return
	}
	c.Transport.SetTLSHandshake(fn)
	return c
}