import torch
from typing import Optional, Tuple

from . import op


def rms_rotary_embedding_fuse(
    positions: torch.Tensor,
    query: torch.Tensor,
    key: Optional[torch.Tensor],
    head_size: int,
    cos_sin_cache: torch.Tensor,
    is_neox: bool,
    weight_q: torch.Tensor,
    weight_k: torch.Tensor,
    residual_q: Optional[torch.Tensor],
    residual_k: Optional[torch.Tensor],
    epsilon: float = 1e-5,
) -> Tuple[torch.Tensor, Optional[torch.Tensor]]:
    op.rms_rotary_embedding_fuse(
        positions,
        query,
        key,
        head_size,
        cos_sin_cache,
        is_neox,
        weight_q,
        weight_k,
        residual_q,
        residual_k,
        epsilon,
    )
    return query, key