code: def forward(self, x):
      return F.linear(x, self._weight, self._bias)
  
file_path: opacus/opacus/tests/utils.py
imports: import torch
  import torch.nn
  import torch.nn.functional
label_desc: Use image node_id 2 for calling the CustomLinearModule obj's underlying member method code with example usage: obj.forward(x) and returns: F