code: def __init__(self, in_channels, out_channels):
      super(FPEM, self).__init__()
      planes = out_channels
      self.dwconv3_1 = nn.Conv2D(
          planes,
          planes,
          kernel_size=3,
          stride=1,
          padding=1,
          groups=planes,
          bias_attr=False,
      )
      self.smooth_layer3_1 = Conv_BN_ReLU(planes, planes)
  
      self.dwconv2_1 = nn.Conv2D(
          planes,
          planes,
          kernel_size=3,
          stride=1,
          padding=1,
          groups=planes,
          bias_attr=False,
      )
      self.smooth_layer2_1 = Conv_BN_ReLU(planes, planes)
  
      self.dwconv1_1 = nn.Conv2D(
          planes,
          planes,
          kernel_size=3,
          stride=1,
          padding=1,
          groups=planes,
          bias_attr=False,
      )
      self.smooth_layer1_1 = Conv_BN_ReLU(planes, planes)
  
      self.dwconv2_2 = nn.Conv2D(
          planes,
          planes,
          kernel_size=3,
          stride=2,
          padding=1,
          groups=planes,
          bias_attr=False,
      )
      self.smooth_layer2_2 = Conv_BN_ReLU(planes, planes)
  
      self.dwconv3_2 = nn.Conv2D(
          planes,
          planes,
          kernel_size=3,
          stride=2,
          padding=1,
          groups=planes,
          bias_attr=False,
      )
      self.smooth_layer3_2 = Conv_BN_ReLU(planes, planes)
  
      self.dwconv4_2 = nn.Conv2D(
          planes,
          planes,
          kernel_size=3,
          stride=2,
          padding=1,
          groups=planes,
          bias_attr=False,
      )
      self.smooth_layer4_2 = Conv_BN_ReLU(planes, planes)
  
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 1 to create a new FPEM object from inherited base classes: nn with example: obj = FPEM(in_channels, out_channels)