Content License: Creative Commons Attribution Non Commercial Share Alike 4.0 International (CC-BY-NC-SA-4.0)Credit must be given to the creatorOnly noncommercial uses of the work are permittedAdaptations must be shared under the same termsDownloadsDownload 48.2 Visitor patternPierrick RogerOctober 1, 202648.2.1ControlFlow¶