if trace != nil {
		return trace.Got1xxResponse
	}
	return nil
}

// dialTLSWithContext uses tls.Dialer, added in Go 1.15, to open a TLS
// connection.
func (t *http2Transport) dialTLSWithContext(ctx context.Context, network, addr string, cfg *tls.Config) (*tls.Conn, error) {
	dialer := &tls.Dialer{
		Config: cfg,
	}