Transformer# The Transformer provides methods for manipulating data stored in a PACK object. Base BaseTransformerMixin BaseTransformerMixin.gatherDates() BaseTransformerMixin.gatherKeys() BaseTransformerMixin.gatherReferences() BaseTransformerMixin.gatherSimplePaths() BaseTransformerMixin.gatherText() BaseTransformerMixin.gatherValuesForKeys() BaseTransformerMixin.validate()