Add extract apollo#217

Open

sagebiej wants to merge 2 commits intoleifeld:masterfrom

sagebiej:add-extract-apollo

Commits on Aug 4, 2025

changed is.ggplot to is_gglot in test plotreg to adapt to new package version of ggplot
sagebiej
committed

Commits on Aug 5, 2025

added tests and documentation
sagebiej
committed