code: def forward(self, x):
      shortcut = x
  
      x = self.conv1(x)
      x = self.act1(x)
  
      x = self.conv2(x)
      x = self.act2(x)
  
      x = self.conv3(x)
  
      # x = self.drop_path(x)
  
      x += shortcut
      x = self.act3(x)
  
      return x
  
imports: import itertools
  import paddle
  from paddle import nn
  from paddle.nn import functional
  from .common import LayerNorm2d
label_desc: Use image node_id 2 for calling the MBConv obj's underlying member method code with example usage: obj.forward(x) and returns: x