code: def forward(self, x):
      skips = []
      for i in range(self.n_skip):
          skips.append(getattr(self, "ConvBlockskip" + str(i + 1))(x))
          x = F.avg_pool2d(x, 2)
          x = getattr(self, "ConvBlock" + str(i + 1))(x)
  
      x = self.ConvBlock5(x)
  
      for i in range(self.n_skip):
          x = getattr(self, "ConvBlock" + str(i + 6))(x)
          x = F.upsample(x, scale_factor=2)
          x = skips[self.n_skip - i - 1] + x
  
      return x
  
imports: import paddle
  import paddle.nn
  import paddle.nn.functional
label_desc: Use image node_id 2 for calling the HourGlassBlock obj's underlying member method code with example usage: obj.forward(x) and returns: x