code: def getcellslice(self, columnname, rownr, blc, trc, inc=[]):
          
          return self._getcellslice(columnname, rownr,
                                    blc, trc, inc)
docs: Get a slice from a column cell holding an array.
  
          The columnname and (0-relative) rownr indicate the table cell.
  
          The slice to get is defined by the blc, trc, and optional inc arguments
          (blc = bottom-left corner, trc=top-right corner, inc=stride). Not all
          axes have to be filled in for blc, trc, and inc. Missing axes default
          to begin, end, and 1. A negative blc or trc defaults to begin or end.
          Note that trc is inclusive (unlike python indexing).