code: def _upsample_add(self, x, y):
      return F.upsample(x, scale_factor=2, mode="bilinear") + y
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import paddle
  from paddle import nn
  import paddle.nn.functional
  from paddle import ParamAttr
  import os
  import sys
  import math
  from paddle.nn.initializer import TruncatedNormal, Constant, Normal
label_desc: Use image node_id 2 for calling the FPEM obj's underlying member method code with example usage: obj._upsample_add(x, y) and returns: unknown