Returns True if the type is elementary - not versioned
        :param elem_type:
        :return:

def is_elementary_type(elem_type):
        """
        Returns True if the type is elementary - not versioned
        :param elem_type:
        :return:
        """
        if not oh.is_type(elem_type, bt.XmrType):
            return False
        if oh.is_type(elem_type, (bt.UVarintType, bt.IntType, mt.UnicodeType)):
            return True
        return False