| Interface | Description |
|---|---|
| GroovyObject | GDK enhancements for GroovyObject. |
| MetaClass | GDK enhancements for MetaClass. |
| Range | GDK enhancements for Range. |
| Class | Description |
|---|---|
| Closure | GDK enhancements for Closure. |
| GString | GDK enhancements for GString. |
| ListWithDefault | GDK enhancements for ListWithDefault. |