|:------------------|:----------------------------------------------------------|
| `Allow` | Change is allowed |
| `And` or `AllOf` | Change is allowed if all the operands are true |
| `AnyDelegate` | Did change originate on a delegate node? |
| `BranchCreated` | Branch was created |
| `BranchDeleted` | Branch was deleted |
| `BranchUpdated` | Branch was updated |