code: def forward(self, x):
      return self.feed_forward(x)
  
imports: from collections import OrderedDict
  import os
  import numpy
  import torch
  from torch import nn
  from gluoncv.torch.utils.coot_utils import truncated_normal_fill
label_desc: Use image node_id 2 for calling the PointwiseFeedForwardNetwork obj's underlying member method code with example usage: obj.forward(x) and returns: self