pub unsafe extern "C" fn atg__efficient_attention_backward(
out__: *mut *mut C_tensor,
grad_out__: *mut C_tensor,
query_: *mut C_tensor,
key_: *mut C_tensor,
value_: *mut C_tensor,
bias_: *mut C_tensor,
out_: *mut C_tensor,
cu_seqlens_q_: *mut C_tensor,
cu_seqlens_k_: *mut C_tensor,
max_seqlen_q_: i64,
max_seqlen_k_: i64,
logsumexp_: *mut C_tensor,
dropout_p_: f64,
philox_seed_: *mut C_tensor,
philox_offset_: *mut C_tensor,
custom_mask_type_: i64,
bias_requires_grad_: c_int,
scale_v: f64,
scale_null: i8,
num_splits_key_v: i64,
num_splits_key_null: i8
)