class_docstr: Gather And Expansion Layer with stride 1
class_docstr_tok: ["Gather","And","Expansion","Layer","with","stride","1"]
code: def forward(self, x):
      return self.relu(self.conv(x) + x)
  
imports: import os
  import paddle
  import paddle.nn
  import paddle.nn.functional
  from paddleseg import utils
  from paddleseg.cvlibs import manager, param_init
  from paddleseg.models import layers
label_desc: Use image node_id 2 for calling the GatherAndExpansionLayer1 obj's underlying member method code with example usage: obj.forward(x) and returns: self