def __init__(self):
        r"""
        :param ImageID: 镜像ID
        :type ImageID: str
        :param ImageName: 镜像名称
        :type ImageName: str
        :param CreateTime: 创建时间
        :type CreateTime: str
        :param Size: 镜像大小
        :type Size: int
        :param HostCnt: 关联主机个数