Try: ROOT.gROOT.ProcessLine('#include <any>')
or: ROOT.gInterpreter.ProcessLine('#include <any>')
or (better?): ROOT.gInterpreter.Declare('#include <any>')
@Axel What is actually the best way to deal with it? Via “gROOT” or “gInterpreter”? Using “ProcessLine” or “ProcessLineSynch” or “Declare”?