pub unsafe extern "C" fn atg__scaled_dot_product_flash_attention_backward(
out__: *mut *mut C_tensor,
grad_out_: *mut C_tensor,
query_: *mut C_tensor,
key_: *mut C_tensor,
value_: *mut C_tensor,
out_: *mut C_tensor,
logsumexp_: *mut C_tensor,
cum_seq_q_: *mut C_tensor,
cum_seq_k_: *mut C_tensor,
max_q_: i64,
max_k_: i64,
dropout_p_: f64,
is_causal_: c_int,
philox_seed_: *mut C_tensor,
philox_offset_: *mut C_tensor,
scale_v: f64,
scale_null: i8
)