Database.Find(OBJDEF) restricted to specific groups

Hello all, 

I am trying to do a research of some ObjDef in an ARIS Report Script. I would like to operate a search on a Database but I would like to filter my search to a specific group. Is this something that is possible? Here is what I tried to do but it is not working somehow. 

I even get an error that createSearchItem is not present in the Database object

function getRegulationsFromGroup(group) {
   const searchItem =  group.Database().createSearchItem(
                               Constants.OT_TYPE,          // AttrTypeNum
                               g_nLoc,                     // LocaleId
                               group,                      // sAttributeValue
                               Constants.SEARCH_CMP_EQUAL, // comparisonMethod
                               true,                       // bCaseSensitive
                               false                       // bAllowWildcards
                           );
   var regulationsArray =  group.Database().Find(
                               Constants.SEARCH_OBJDEF,    // SearchKind
                               Constants.OT_CLST,          // itemTypes
                               searchItem                  // searchItem
                           );
   return (regulationsArray);
}