def get_id(self, version: int) -> str:
    if (version == 1):
        return 'A'
    if (version == 2):
        if self.size:
            return (('A' + str(self.size)) + '_')
        else:
            return 'A_'
    if self.size:
        return (('A' + self.size.get_id(version)) + '_')
    else:
        return 'A_'
def get_id(self, version: int) -> str:
    if (version == 1):
        return 'A'
    if (version == 2):
        if self.size:
            return (('A' + str(self.size)) + '_')
        else:
            return 'A_'
    if self.size:
        return (('A' + self.size.get_id(version)) + '_')
    else:
        return 'A_'