src/transformers/models/gptsan_japanese/modeling_gptsan_japanese.py/GPTSanJapaneseLayerSelfAttention/__init__
class GPTSanJapaneseLayerSelfAttention:    def __init__(self, config, has_relative_attention_bias=False):
        super().__init__()
        self.self_attn = GPTSanJapaneseAttention(
            embed_dim=config.d_model,
            num_heads=config.num_heads,
            is_decoder=True,
            bias=has_relative_attention_bias,
        )
        self.norm = nn.LayerNorm(config.d_model, eps=config.layer_norm_epsilon)