code: def emitDataChanged(self, regItem):
          
          leftIndex = self.indexFromItem(regItem, col=0)
          rightIndex = self.indexFromItem(regItem, col=-1)
  
          logger.debug("Data changed: {} ...{}".format(self.data(leftIndex), self.data(rightIndex)))
          self.dataChanged.emit(leftIndex, rightIndex)
docs: Emits the dataChagned signal for the regItem