code: def __init__(self):
      super().__init__()
      self.linear1 = torch.nn.Linear(4, 4)
      self.linear2 = torch.nn.Linear(4, 4)
  
imports: import pytest
  import torch
  import torch.nn.functional
  from torch.utils.checkpoint import checkpoint
  import colossalai
  from colossalai.fx import ColoTracer
  from colossalai.fx.graph_module import ColoGraphModule
  from colossalai.legacy.core import global_context
  from colossalai.testing import rerun_if_address_is_in_use, spawn
label_desc: Use image node_id 1 to create a new MLP object from inherited base classes: torch.nn with example: obj = MLP()