# gdtest_big_class > A package with a class that has many methods ## Docs ### API Reference #### Classes > Main classes provided by the package - [DataProcessor](reference/DataProcessor.html): A data processing pipeline with many operations #### DataProcessor Methods > Methods for the DataProcessor class - [DataProcessor.load](reference/DataProcessor.load.html) - [DataProcessor.transform](reference/DataProcessor.transform.html) - [DataProcessor.filter](reference/DataProcessor.filter.html) - [DataProcessor.sort](reference/DataProcessor.sort.html) - [DataProcessor.aggregate](reference/DataProcessor.aggregate.html) - [DataProcessor.validate](reference/DataProcessor.validate.html) - [DataProcessor.export](reference/DataProcessor.export.html) - [DataProcessor.summary](reference/DataProcessor.summary.html) #### Functions > Utility functions - [load_data](reference/load_data.html): Convenience function to create a processor and load data - [save_data](reference/save_data.html): Save processor data to a file