UpgradeTaskActionParameters (type)

{
  "id": "UpgradeTaskActionParameters", 
  "properties": {
    "action": {
      "description": "The upgrade task to perform.", 
      "pattern": "^[^/]+$", 
      "title": "Upgrade task", 
      "type": "string"
    }
  }, 
  "type": "object"
}