{
"Bufid": "string",
"FromUserName": "string",
"Length": 0,
"MsgId": "string",
"Wxid": "string"
}curl --location 'http://test-cn.your-api-server.com/Tools/DownloadVoice' \
--header 'Content-Type: application/json' \
--data '{
"Bufid": "string",
"FromUserName": "string",
"Length": 0,
"MsgId": "string",
"Wxid": "string"
}'{}