src/transformers/models/dpt/modeling_dpt.py/DPTViTLayer/__init__
class DPTViTLayer:    def __init__(self, config: DPTConfig) -> None:
        super().__init__()
        self.chunk_size_feed_forward = config.chunk_size_feed_forward
        self.seq_len_dim = 1
        self.attention = DPTViTAttention(config)
        self.intermediate = DPTViTIntermediate(config)
        self.output = DPTViTOutput(config)
        self.layernorm_before = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
        self.layernorm_after = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)