The following entries in examples/api are not referenced by any code (all others in this directory are referenced by tests/backend_driver.py): compound_path.py demo_affine_image.py engineering_formatter.py fahrenheit_celsius_scales.py font_file.py histogram_path_demo.py radar_chart.py sankey_demo_basics.py sankey_demo_links.py sankey_demo_old.py sankey_demo_rankine.py Edit: Damon again. Editing to include 'sprint'.