| Class | Description | 
|---|---|
| ResponseDataHandler | This class represents the functionality available in Transaction Chaining when you use the $responseData template variable. | 
| ResponseDataWrapper | This class is a wrapper over a DSResponse data object, that enables Velocity code to treat a multi-valued data object (a List or array), as either a list or a single object. | 
| ResponsesHandler | This class represents the functionality available in Transaction Chaining when you use the $responses template variable. |