SoftLayer接口:如何从镜像模板中获取blockDevice信息？

import SoftLayer

client = SoftLayer.create_client_from_env()
account_service = client['SoftLayer_Account']

template_groups = account_service.getVirtualGuestBlockDeviceTemplateGroups()

for template_group in template_groups:
    template_group_id = template_group['id']
    template_group_service = client['SoftLayer_Virtual_Guest_Block_Device_Template_Group']
    block_devices = template_group_service.getBlockDevices(id=template_group_id)
    # 处理blockDevice信息

for block_device in block_devices:
    device_name = block_device['device']
    capacity = block_device['diskImage']['capacity']
    disk_type = block_device['diskImage']['diskType']['keyName']
    # 处理blockDevice信息