class_docstr: Tests pipeline modules by also returning the mask.
class_docstr_tok: ["Tests","pipeline","modules","by","also","returning","the","mask","."]
code: def forward(self, x, mask):
      return super().forward(x, mask), mask
  
imports: import pytest
  import torch
  import deepspeed
  from copy import deepcopy
  from unit.common import DistributedTest
label_desc: Use image node_id 1 for calling the MaskedLinearSeq obj's underlying member method code with example usage: obj.forward(x, mask) and returns: super,  mask