code: def forward(self, x):
      x = self.model(x)
      if self.out:
          x[-1] = self.out(x[-1])
      return x
  
imports: from __future__ import division
  from __future__ import print_function
  import paddle
  import paddle.nn
  from paddle.utils.download import get_weights_path_from_url
  from ppdet.core.workspace import register, serializable
  from ..shape_spec import ShapeSpec
label_desc: Use image node_id 3 for calling the CLRResNet obj's underlying member method code with example usage: obj.forward(x) and returns: x