Add | Adds a SAF-T transaction type. |
 Delete | Deletes an existing SAF-T transaction type. |
 Get | Retrieves a SAF-T transaction type. The type is specified by its key, which is contained in the `SAFTTransactionTypeParams` object passed to the method. |
 GetDataInterface | Creates an empty data structure for use with the `SAFTTransactionTypesService`. |
 GetDataInterfaceFromXMLFile | Creates an object from an XML file. |
 GetDataInterfaceFromXMLString | Creates an object from XML. |
 GetList | Returns the `SAFTTransactionTypeParamsCollection` data collection that identifies all SAF-T transaction types. |
 Update | Updates an existing SAF-T transaction type. |
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