class_docstr: Implement of SGC
class_docstr_tok: ["Implement","of","SGC"]
code: def forward(self, graph_wrapper, feature, phase):
      feature = conv.appnp(
          graph_wrapper,
          feature=feature,
          edge_dropout=0,
          alpha=0,
          k_hop=self.num_layers,
      )
      feature.stop_gradient = True
      feature = L.fc(
          feature,
          self.num_class,
          act=None,
          bias_attr=False,
          name="output",
      )
      return feature
  
imports: import pgl
  import paddle.fluid.layers
  import pgl.layers.conv
label_desc: Use image node_id 2 for calling the SGC obj's underlying member method code with example usage: obj.forward(graph_wrapper, feature, phase) and returns: feature