# gdtest_all_concat > A synthetic test package testing __all__ concatenation ## Docs ### API Reference #### Classes > Main classes provided by the package - [Record](reference/Record.html): A data record #### Functions > Utility functions - [format_output](reference/format_output.html): Format output data as a string - [parse_input](reference/parse_input.html): Parse input text into a dictionary - [validate_record](reference/validate_record.html): Validate a record