code: def forward(self, x: torch.Tensor) -> torch.Tensor:
      x = self.dense1(x)
      return self.dense2(x)
  
file_path: alibi-detect/alibi_detect/cd/pytorch/tests/test_preprocess_pt.py
imports: from itertools import product
  import numpy
  import pytest
  import torch
  import torch.nn
  from alibi_detect.cd.pytorch import HiddenOutput
label_desc: Use image node_id 2 for calling the Model1 obj's underlying member method code with example usage: obj.forward(x) and returns: self