code: def setTableType(self, tableType):
          
          self.navigator().setTableType(tableType)
          completer = XJoinCompleter(self.navigator().model(), self)
          completer.setCompletionMode(XJoinCompleter.InlineCompletion)
          self.setCompleter(completer)
docs: Sets the table type associated with this navigator.
          
          :param      tableType | <subclass of orb.Table>