:param preKeyIds:
        :type preKeyIds: list
        :return:
        :rtype:

def setAsSent(self, prekeyIds):
        """
        :param preKeyIds:
        :type preKeyIds: list
        :return:
        :rtype:
        """
        for prekeyId in prekeyIds:
            q = "UPDATE prekeys SET sent_to_server = ? WHERE prekey_id = ?"
            cursor = self.dbConn.cursor()
            cursor.execute(q, (1, prekeyId))
        self.dbConn.commit()