{
  "projectName": "projects/PROJECT_ID",
  "spec": {
    "displayName": "Sustained high CPU",
    "metricId": "cpu_utilization_pct",
    "operator": "GREATER_THAN",
    "threshold": 90,
    "sustainedSeconds": 300,
    "severity": "WARNING",
    "allVms": true,
    "enabled": true,
    "repeatIntervalSeconds": 3600,
    "destinationNames": []
  },
  "historySeconds": 3600
}