def METHOD_NAME(self, actionmention_filename):
    """Add action mentions"""
    parser = GenewaysActionMentionParser(actionmention_filename)
    self.action_mentions = parser.action_mentions
    for action_mention in self.action_mentions:
        hiid = action_mention.hiid
        if hiid not in self.hiid_to_action_index:
            m1 = 'Parsed action mention has hiid %d, which does not exist'
            m2 = ' in table of action hiids'
            raise Exception((m1 + m2) % hiid)
        else:
            idx = self.hiid_to_action_index[hiid]
            self.actions[idx].action_mentions.append(action_mention)