code: def forward(self, x):
      x_shape = paddle.shape(x)[2:]
      x_list = []
  
      x_list.append(self.scale0(x))
      x_list.append(
          self.process1(
              (
                  F.interpolate(
                      self.scale1(x), size=x_shape, mode="bilinear"
                  )
                  + x_list[0]
              )
          )
      )
      x_list.append(
          (
              self.process2(
                  (
                      F.interpolate(
                          self.scale2(x), size=x_shape, mode="bilinear"
                      )
                      + x_list[1]
                  )
              )
          )
      )
      x_list.append(
          self.process3(
              (
                  F.interpolate(
                      self.scale3(x), size=x_shape, mode="bilinear"
                  )
                  + x_list[2]
              )
          )
      )
      x_list.append(
          self.process4(
              (
                  F.interpolate(
                      self.scale4(x), size=x_shape, mode="bilinear"
                  )
                  + x_list[3]
              )
          )
      )
  
      out = self.compression(
          paddle.concat(x_list, axis=1)
      ) + self.shortcut(x)
      return out
  
imports: from functools import partial
  import paddle
  import paddle.nn
  import paddle.nn.functional
  from paddleseg.cvlibs import manager, param_init
  from paddleseg.models import layers
  from paddleseg.utils import utils
  from paddleseg.models.backbones.transformer_utils import DropPath, Identity
  from paddleseg.cvlibs.param_init import constant_init, kaiming_normal_init, trunc_normal_init
label_desc: Use image node_id 2 for calling the DAPPM obj's underlying member method code with example usage: obj.forward(x) and returns: out