code: def forward(self, x):
      out = []
      out.append(x)
  
      for m in self.features:
          out.append(m(x))
  
      out = torch.cat(out, 1)
  
      return out
  
file_path: pywick/pywick/models/segmentation/testnets/psp_saeed.py
imports: import torch
  import torch.nn.init
  import torch.nn
  from torchvision import models
  import torch.nn.functional
  import numpy
  import math
label_desc: Use image node_id 2 for calling the PyramidPoolingModule obj's underlying member method code with example usage: obj.forward(x) and returns: out