code: def forward(self, x):
      x = self._conv(x)
      x = self._batch_norm(x)
      x = F.relu(x)
      return x
  
file_path: PaddleHub/modules/image/semantic_segmentation/FCN_HRNet_W18_Face_Seg/model/layers.py
imports: import paddle
  import paddle.nn
  import paddle.nn.functional
label_desc: Use image node_id 2 for calling the ConvBNReLU obj's underlying member method code with example usage: obj.forward(x) and returns: x