mmdet/core/utils/__init__.py

from .dist_utils import DistOptimizerHook, allreduce_grads, reduce_mean
from .misc import mask2ndarray, multi_apply, unmap

__all__ = [
    'allreduce_grads', 'DistOptimizerHook', 'reduce_mean', 'multi_apply',
    'unmap', 'mask2ndarray'
]