curl --location --request GET '/v4/ebs-backup/usage?regionID=81f7728662dd11ec810800155d307d5b&backupID=59093d15-8a3c-53b9-b61b-484af10a3e97'
{
"description": "成功",
"errorCode": "SUCCESS",
"message": "success",
"returnObj": {
"usedSize": 24470
},
"statusCode": 800
}