code: def forward(self, x):
      return self.block(x) + self.linear_shortcut(x)
  
file_path: DIG/dig/sslgraph/method/contrastive/model/infograph.py
imports: import torch.nn
  from .contrastive import Contrastive
label_desc: Use image node_id 2 for calling the ProjHead obj's underlying member method code with example usage: obj.forward(x) and returns: unknown