求大佬帮忙，用python的netmiko模块登陆到交换机后，使用命令使交换机FTP去下载文件时，有个百分比的进度条如何实时读取出来，如下图
<SW1>ftp 192.168.56.1
Trying 192.168.56.1 ...
Press CTRL+K to abort
Connected to 192.168.56.1.
User(192.168.56.1:(none)):yl
331 Password required for yl
Enter password:
230 Logged on
[ftp]get GoodSync119.rar
200 Port command successful
150 Opening data channel for file download from server of "/GoodSync119.rar"
 67%
实时读取这个百分数并实时显示，能看到下载进度

你好，华为设备没法使用recv_timing_output()，会报错：
Traceback (most recent call last):
  File "E:\python项目\1\test2.py", line 42, in <module>
    output = ssh.recv_timing_output()
AttributeError: 'HuaweiSSH' object has no attribute 'recv_timing_output'

代码如下，会报错：

from netmiko import ConnectHandler
import re

# 定义交换机登录信息
device_info = {
    'device_type': 'huawei',
    'ip': '192.168.56.11',
    'username': 'huawei',
    'password': 'Huawei@123',
}
# 登录交换机
with ConnectHandler(**device_info) as ssh:
    # 发送FTP下载命令
    ssh.send_command_timing('ftp 192.168.56.1')
    ssh.send_command_timing('yl')
    ssh.send_command_timing('123')
    ssh.send_command_timing('get GoodSync119.rar')
    # 循环读取输出结果，获取FTP下载进度信息
    while True:
        output = ssh.recv_timing_output()
        if re.search(r'\d+%', output):
            print(re.search(r'\d+%', output).group())
        if 'ftp>' in output:
            break