docs: def count(self, table):
          """
          Use the current Query object to count the number of entries in `table`
          that satisfy `queries`.
  
          Parameters
          ----------
          table : NumPy structured array, astropy Table, etc.
  
          Returns
          -------
          count : int
          """
          if self._operator is None and self._operands is None:
              return self._get_table_len(table)
  
          return np.count_nonzero(self.mask(table))