     let count = endCol - startCol
     guard chunk.count == count && attrIds.count == count else {
       self.bridgeLogger.error("The count of chunks and attrIds do not match.")
-      return (false, Int.max)
+      return Int.max
     }
     self.ugrid.update(row: row,
                       startCol: startCol,

        switch type {

        case .rawLine:
          let (r, s) = self.doRawLine(data: innerArray)
          recompute = recompute ? true : r
          rowStart = r ? min(rowStart, s) : rowStart

        case .goto:
          guard let row = innerArray[0].uint64Value,

        }
      }

      guard recompute else { return }
      self.ugrid.recomputeFlatIndices(
        rowStart: rowStart,
        rowEndInclusive: self.ugrid.size.height - 1
      )
    }
  }

