code: public Cells getValueCells() {
          Cells res = new Cells(this.nameSpace);
  
          for (Map.Entry<String, List<Cell>> entry : cells.entrySet()) {
              Cells keys = getValueCells(entry.getKey());
  
              for (Cell c : keys) {
                  res.add(entry.getKey(), c);
              }
          }
  
          return res;
      }
docs: Extracts the Cell(s) associated to the default table _NOT_ marked as partition key and _NOT_ marked as cluster
  key.
  
  @return the Cells object containing the subset of this Cells object of only the Cell(s) that are NOT part of the
  key.