lm.Bookmark
User-facing factory for free-floating bookmarks. Pass to c.add().
lm.Bookmark(name: 'str', *, at: 'tuple[float, float] | None' = None, bbox: 'tuple[float, float, float, float] | None' = None, group: 'str | None' = None, notes: 'str | None' = None) -> 'None'