class_docstr: The most useful module. A pass-through module which does nothing.
class_docstr_tok: ["The","most","useful","module",".","A","pass-through","module","which","does","nothing","."]
code: def forward(self, x):
      return x
  
imports: from torch import nn
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