more handles on meta info
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printMetaInfohas been renamedgetMetaInfo(print*execs print sth to the shell, whileget*execs write an output file) - a new exec,
printMetaInfo, takes a ntuple as input and a path to a key, and returns the value.
printMetaInfo has been renamed getMetaInfo (print* execs print sth to the shell, while get* execs write an output file)printMetaInfo, takes a ntuple as input and a path to a key, and returns the value.