class_docstr: Pyramid-OC
class_docstr_tok: ["Pyramid-OC"]
code: def forward(self, x):
      priors = [stage(x) for stage in self.stages]
      context = [self.up_dr(x)]
      for i in range(len(priors)):
          context += [priors[i]]
      context = torch.cat(context, 1)
      out = self.project(context)
      return out
  
imports: import torch
  import torch.nn
  import torch.nn.functional
  from pywick.models.segmentation.da_basenets.segbase import SegBaseModel
  from pywick.models.segmentation.da_basenets.fcn import _FCNHead
label_desc: Use image node_id 2 for calling the PyramidOCModule obj's underlying member method code with example usage: obj.forward(x) and returns: out