=== Content of AODs ===

https://twiki.cern.ch/twiki/bin/view/Atlas/AODClassSummary14

https://twiki.cern.ch/twiki/bin/view/Atlas/AODClassSummary15

https://twiki.cern.ch/twiki/bin/view/Atlas/AtlfastII#Differences_to_the_old_Atlfast_I