# Copyright (c) 2024, NVIDIA CORPORATION. All rights reserved.
from dataclasses import dataclass

from torch import Tensor


@dataclass
class PackedSeqParams:
    '''
    parameters to TEDotProductAttention and fused rope kernels for the
    `thd` (packed) sequence format
    '''

    qkv_format: str = None
    cu_seqlens_q: Tensor = None
    cu_seqlens_kv: Tensor = None
    cu_seqlens_q_padded: Tensor = None
    cu_seqlens_kv_padded: Tensor = None
    max_seqlen_q: Tensor = None
    max_seqlen_kv: Tensor = None