Properties for performing text to speech transformations. These are the same properties that [APL transformers](https://developer.amazon.com/docs/alexa-presentation-language/apl-data-source.html#transformer-properties-and-conversion-rules) use.
For this enum type, if a value unknown to the SDK is returned the UNKNOWN_TO_SDK_VERSION
enumeration value will be returned. To directly return the raw String value, use getTransformerAsString().
Get the underlying String value for transformer.
Using this accessor will retrieve the raw underlying value, even if it is not
present in the corresponding enumeration. For forward compatibility, it is recommended
to use this approach over the enumeration.
A JSON path that points to either a single entity in the message object, or a set of entities using wildcard or unresolved arrays. Examples 'family[*].name', 'address.street'. See [APL transformer properties](https://developer.amazon.com/docs/alexa-presentation-language/apl-data-source.html#transformer-properties-and-conversion-rules) for more details.
Name of the output property to add to the message object. For example, if the inputPath is \"address.street\", the transformer output will be stored at \"address.outputName\". If no outputName is supplied, the transformer output will override the value at inputPath.