curl --location '/api/account/bill/stats/series?timePreset=undefined&beginTime=undefined&endTime=undefined&orderType=undefined&orderSubType=undefined&status=undefined&payStatus=undefined&modelCode=undefined&orderNo=undefined&walletScope=undefined&granularity=undefined&metric=undefined' \
--header 'Authorization: Bearer **' \
--header 'x-user-code;' \
--header 'x-user-token;'{
"code": 200,
"data": {
"metric": "amount",
"granularity": "day",
"resolvedRange": {
"timePreset": "last7d",
"beginTime": "2026-07-02 00:00:00",
"endTime": "2026-07-08 09:55:00"
},
"points": [
{
"timeLabel": "2026-07-02",
"metricValue": 12.5
}
]
}
}