code: def forward(self, x):
      x = self.conv1(x)
      x = self.pool(x)
  
      x = self.conv2(x)
      x = self.pool(x)
  
      return x
  
file_path: PaddleOCR/ppocr/modeling/backbones/rec_shallow_cnn.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import math
  import numpy
  import paddle
  from paddle import ParamAttr
  import paddle.nn
  import paddle.nn.functional
  from paddle.nn import MaxPool2D
  from paddle.nn.initializer import KaimingNormal, Uniform, Constant
label_desc: Use image node_id 2 for calling the ShallowCNN obj's underlying member method code with example usage: obj.forward(x) and returns: x