# gdtest_pdm_big_class > Test package for PDM layout + big class. ## Docs ### API Reference #### Classes > Main classes provided by the package - [Pipeline](reference/Pipeline.html): A multi-step data processing pipeline #### Pipeline Methods > Methods for the Pipeline class - [Pipeline.load](reference/Pipeline.load.html) - [Pipeline.clean](reference/Pipeline.clean.html) - [Pipeline.transform](reference/Pipeline.transform.html) - [Pipeline.validate](reference/Pipeline.validate.html) - [Pipeline.aggregate](reference/Pipeline.aggregate.html) - [Pipeline.export](reference/Pipeline.export.html) - [Pipeline.status](reference/Pipeline.status.html)