# multi-head attention -> (then to) ff
# attention: qkv -> score = qk ->  divide -> softamx
# multihead -> QKV diferent in each head ( built by : X*[WQ/QK/WV])
# z = soft(Q*K'/sqr(d))*V
# recombine Z: 1) concatenate. 2) [z01234] * W = Z
# we expect later to have padding token
########################
# WIP
########################

import torch.nn as nn

embed_dim = 256
num_heads = 8
multihead_attn = nn.MultiheadAttention(embed_dim, num_heads)


class MultiheadAttention:

    def __init__(
        self,
        num_heads=8,
    ) -> None:
        pass