def is_probably_a_voice_vote(self):
        '''Guess whether this vote is a "voice vote".'''
        if '+voice_vote' in self:
            return True
        if '+vote_type' in self:
            if self['+vote_type'] == 'Voice':
                return True
        if 'voice vote' in self['motion'].lower():
            return True
        return False
Guess whether this vote is a "voice vote".