These are sets of test data for docs tests, streamlined to minimize the amount of time setting up the test environment in CI.  Each CSV file only contains 20 records from the original set.

For guides that require a Data Source but no actual data, use:
docs/docusaurus/docs/components/_testing/test_data_sets/empty_data_folder

For guides that require a File Path Data Asset, use:
docs/docusaurus/docs/components/_testing/test_data_sets/single_test_file

For guides that require a Directory Data Asset, use:
docs/docusaurus/docs/components/_testing/test_data_sets/three_test_files