docs: def pageSizePicked( self, pageSize ):
          """
          Updates when the user picks a page size.
          
          :param      pageSize | <str>
          """
          try:
              pageSize = int(self._pageSizeCombo.currentText())
          except ValueError:
              pageSize = 0
          
          self.setPageSize(pageSize)
          self.pageSizeChanged.emit(pageSize)