# Copyright 2021 Alibaba Group Holding Limited. All Rights Reserved.

from .base_2d_stem import Base2DStem
from .base_3d_stem import Base3DStem
from .down_sample_stem import DownSampleStem
from .r2plus1d_stem import R2Plus1DStem
from .embedding_stem import PatchEmbedStem, TubeletEmbeddingStem
