class_docstr: CBlock
class_docstr_tok: ["CBlock"]
code: def forward(self, x):
      x = x + self.pos_embed(x)
      x = x + self.drop_path(
          self.conv2(self.attn(self.conv1(self.norm1(x))))
      )
      x = x + self.drop_path(self.mlp(self.norm2(x)))
      return x
  
imports: from collections import OrderedDict
  import torch
  from torch import nn
  from torch.utils import checkpoint
  from functools import partial
  from towhee.models.utils.general_utils import to_2tuple
  from towhee.models.utils.weight_init import trunc_normal_
  from towhee.models.layers.droppath import DropPath
  from towhee.models.layers.mlp import Mlp
  from towhee.models.layers.attention import MultiHeadAttention
  from towhee.models.uniformer.config import _C
  import os
label_desc: Use image node_id 2 for calling the CBlock obj's underlying member method code with example usage: obj.forward(x) and returns: x