code: def U(self):
      return self.LU.triu()
  
imports: import torch
  from torch.distributions import Transform
  from pyro.nn import DenseNN
  from ..None import constraints
  from ..conditional import ConditionalTransformModule
  from ..torch_transform import TransformModule
  from ..util import copy_docs_from
label_desc: Use image node_id 4 for calling the ConditionedGeneralizedChannelPermute obj's underlying member method code with example usage: obj.U() and returns: self