from .flash_attention_dao_cuda import FlashAttentionDaoCudaExtension
from .flash_attention_npu import FlashAttentionNpuExtension
from .flash_attention_xformers_cuda import FlashAttentionXformersCudaExtension

try:
    import flash_attention  # noqa

    HAS_FLASH_ATTN = True
except:
    HAS_FLASH_ATTN = False

try:
    import xformers  # noqa

    HAS_MEM_EFF_ATTN = True
except:
    HAS_MEM_EFF_ATTN = False


__all__ = ["FlashAttentionDaoCudaExtension", "FlashAttentionXformersCudaExtension", "FlashAttentionNpuExtension"]