Initialize the arguments of mat.pack depending on their type: bat-types with an empry bat, atomic types with nil.
Initialize the arguments of mat.pack depending on their type: bat-types with an empry bat,
atomic types with nil.

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb