code: def exists(self):
      
      try:
        info = self._api.tables_get(self._name_parts)
      except google.datalab.utils.RequestException as e:
        if e.status == 404:
          return False
        raise e
      except Exception as e:
        raise e
      self._info = info
      return True
docs: Checks if the table exists.
  
      Returns:
        True if the table exists; False otherwise.
      Raises:
        Exception if there was an error requesting information about the table.