| Annotation Type | Description | 
|---|---|
| PSAction | 
 An annotation representing a action function. 
 | 
| PSItem | 
 An annotation representing an item 
 | 
| PSItemField | 
 An annotation representing an item field 
 | 
| PSOperatorWrapper | 
 An annotation representing a collection of operators 
 | 
| PSTransformation | 
 An annotation representing a transformation function. 
 |