code: def forward(self, x):
      if self.light:
          out = self.new_proj(x) + self.skip(x)
      elif self.asub:
          out_conv = self.conv(x)
          out_conv = self.bn(out_conv)
  
          out = self.attn(x) + out_conv
  
      else:
          x = self.proj(x)
          out = self.norm(x)
      return out
  
imports: import math
  import itertools
  import paddle
  import paddle.nn
  import paddle.nn.functional
  from paddleseg.utils import utils
  from paddleseg.cvlibs import manager, param_init
  from paddleseg.models.backbones.transformer_utils import *
label_desc: Use image node_id 2 for calling the Embedding obj's underlying member method code with example usage: obj.forward(x) and returns: out