[
  {
    "enabled": false,
    "id": "example",
    "name": "示例额度源",
    "short": "示例",
    "url": "https://api.example.com/v1/usage",
    "method": "GET",
    "headers": {
      "Content-Type": "application/json"
    },
    "auth": {
      "type": "bearer",
      "ref": "EXAMPLE_API_KEY"
    },
    "metric": {
      "type": "used_percent",
      "path": "data.usage_percent",
      "reset_path": "data.reset_at"
    }
  }
]