code: def forward(self, x):
      h = self.conv1(paddle.transpose(x, perm=(0, 2, 1)))
      h = paddle.transpose(h, perm=(0, 2, 1))
      h = h + x
      h = self.relu(self.conv2(h))
      return h
  
imports: import paddle
  import paddle.nn
  import paddle.nn.functional
  from paddleseg.cvlibs import manager
  from paddleseg.models import layers
  from paddleseg.utils import utils
label_desc: Use image node_id 2 for calling the GCN obj's underlying member method code with example usage: obj.forward(x) and returns: h