class_docstr: The Transition Up Module
class_docstr_tok: ["The","Transition","Up","Module"]
code: def forward(self, pos1, feat1, pos2, feat2):
      h1 = self.fc1(feat1)
      h2 = self.fc2(feat2)
      h1 = self.fp(pos2, pos1, None, h1).transpose(1, 2)
      return h1 + h2
  
imports: import dgl
  import torch
  import torch.nn
  import torch.nn.functional
  from dgl.geometry import farthest_point_sampler
label_desc: Use image node_id 2 for calling the TransitionUp obj's underlying member method code with example usage: obj.forward(pos1, feat1, pos2, feat2) and returns: unknown