def find_last_greater_player_id_in_trace(self):
        ''' Find the last greater_player's id in trace

        Returns:
            The last greater_player's id in trace
        '''
        for i in range(len(self.trace) - 1, -1, -1):
            _id, action = self.trace[i]
            if (action != 'pass'):
                return _id
        return None
 Find the last greater_player's id in trace

        Returns:
            The last greater_player's id in trace
        
rlcard/games/doudizhu/round.py