code: def forward(self, x):
      residual = x
  
      out = self.block(x)
      if self.residual is not None:
          residual = self.residual(x)
  
      out += residual
      out = self.relu(out)
      return out
  
imports: import paddle.nn
  from paddleseg import utils
  from paddleseg.cvlibs import manager
label_desc: Use image node_id 2 for calling the ResidualBlock obj's underlying member method code with example usage: obj.forward(x) and returns: out