code: def forward(self, x):
      out_left = paddle.nn.functional.relu(x - self.alpha)
      out_right = paddle.nn.functional.relu(-self.alpha - x)
      x = x - out_left + out_right
      return x
  
file_path: PaddleOCR/test_tipc/supplementary/slim/slim_quant.py
imports: import paddle
  import numpy
  import os
  import paddle.nn
  import paddleslim
label_desc: Use image node_id 2 for calling the PACT obj's underlying member method code with example usage: obj.forward(x) and returns: x