List all alerts

Example response

{
  "data": {
    "alerts": [
      {
        "id": "alt_xyz789",
        "interval": "5m",
        "channels": [
          {
            "type": "webhook",
            "name": "Slack Ops",
            "config": {
              "url": "https://hooks.slack.com/services/T00/B00/xxx"
            }
          }
        ]
      }
    ]
  }
}