class_docstr: A helper module that outputs the input as is
class_docstr_tok: ["A","helper","module","that","outputs","the","input","as","is"]
docstr: Return the input as the output
code: def forward(self, x):
      """
      Return the input as the output
      """
      return x
  
imports: import logging
  import math
  import warnings
  from enum import Enum
  from typing import Dict, List, Tuple
  import torch
  import torch.distributed
  import torch.nn
  import torch.nn.functional
  from torch.nn.modules.utils import _ntuple
  from torch.utils.checkpoint import checkpoint
  from vissl.data.collators.collator_helper import MultiDimensionalTensor
  from vissl.utils.activation_checkpointing import checkpoint_trunk
  from vissl.utils.env import get_machine_local_and_dist_rank
  from vissl.utils.misc import is_apex_available
label_desc: Use image node_id 2 for calling the Identity obj's underlying member method code with example usage: obj.forward(x) and returns: x