如何避免磁盘超额收费？

import requests

# 腾讯云API密钥
secret_id = 'your_secret_id'
secret_key = 'your_secret_key'

# 获取存储使用情况
def get_storage_usage(instance_id):
    url = f'https://api.cloud.tencent.com/v2/index.php?Action=DescribeInstances&Version=2017-03-12&InstanceIds.0={instance_id}'
    headers = {
        'Authorization': f'Bearer {get_access_token(secret_id, secret_key)}'
    }
    response = requests.get(url, headers=headers)
    if response.status_code == 200:
        data = response.json()
        storage_usage = data['Instances'][0]['Storage']
        return storage_usage
    else:
        raise Exception(f'Failed to get storage usage: {response.text}')

# 获取访问令牌
def get_access_token(secret_id, secret_key):
    url = 'https://api.cloud.tencent.com/cgi-bin/token'
    params = {
        'grant_type': 'client_credentials',
        'client_id': secret_id,
        'client_secret': secret_key
    }
    response = requests.post(url, params=params)
    if response.status_code == 200:
        data = response.json()
        return data['access_token']
    else:
        raise Exception(f'Failed to get access token: {response.text}')

# 示例调用
instance_id = 'your_instance_id'
storage_usage = get_storage_usage(instance_id)
print(f'Storage Usage: {storage_usage}')