使用GetMonitor 返回值为空

[sandiandian]

go 1.18
GetMonitor无任何报错 但是返回值为空
iOutput, err := Instance.GetMonitor(
&qc.GetMonitorInput{
EndTime: qc.Time(time.Now()),
StartTime: qc.Time(time.Now().Add(-time.Hour * 24)),
Meters: []*string{
qc.String("cpu_utilization"),
qc.String("memory_utilization"),
qc.String("disk_utilization"),
},
Resource: qc.String("i-x x x x"),
Step: qc.String("2h"),
},
)
if err != nil {
logrus.Errorf("Get instance monitor failed, err:%v\n", err)
}
for _, meter := range iOutput.MeterSet {
fmt.Println(meter.Data...)
}