def get_staking_cutoff(self, round_num=0, tournament=1):
        """Compute staking cutoff for the given round and tournament.

        Args:
            round_num (int, optional): The round you are interested in,
                defaults to current round.
            tournament (int, optional): ID of the tournament, defaults to 1

        Returns:
            decimal.Decimal: cutoff probability

        Raises:
            ValueError: in case of missing prize pool information
        """
        query = '''
            query($number: Int!
                  $tournament: Int!) {
              rounds(number: $number
                     tournament: $tournament) {
                selection {
                  outcome
                  pCutoff
                  bCutoff
                }
              }
            }
        '''
        arguments = {'number': round_num, 'tournament': tournament}
        result = self.raw_query(query, arguments)
        result = result['data']['rounds'][0]['selection']
        key = 'bCutoff' if round_num >= 154 or round_num == 0 else 'pCutoff'
        return utils.parse_float_string(result[key])
Compute staking cutoff for the given round and tournament.

        Args:
            round_num (int, optional): The round you are interested in,
                defaults to current round.
            tournament (int, optional): ID of the tournament, defaults to 1

        Returns:
            decimal.Decimal: cutoff probability

        Raises:
            ValueError: in case of missing prize pool information