for _, pc := range conns {
			ret = append(ret, pc.conn.LocalAddr().String()+"/"+pc.conn.RemoteAddr().String())
		}
	}
	slices.Sort(ret)
	return ret
}

func (t *Transport) IdleConnStrsForTesting_h2() []string {
	var ret []string
	noDialPool := t.h2transport.(*http2Transport).ConnPool.(http2noDialClientConnPool)
	pool := noDialPool.http2clientConnPool

	pool.mu.Lock()
	defer pool.mu.Unlock()