编写需要访问请求对象的自定义标记

import tencentcloud.common.credential
import tencentcloud.common.exception.tencent_cloud_sdk_exception
from tencentcloud.cvm.v20170312 import cvm_client, models

# 设置腾讯云的账号密钥
cred = tencentcloud.common.credential.Credential("secretId", "secretKey")

# 初始化腾讯云的CVM客户端
client = cvm_client.CvmClient(cred, "ap-shanghai")

# 设置请求参数
req = models.DescribeInstancesRequest()

# 发送请求，获取响应
resp = client.DescribeInstances(req)

# 获取响应中的自定义标记
for instance in resp.InstanceSet:
    for tag in instance.Tags:
        print("Key: %s, Value: %s" % (tag.Key, tag.Value))