class_docstr: Relation GCN layer. 
class_docstr_tok: ["Relation","GCN","layer","."]
code: def __repr__(self):
      return (
          self.__class__.__name__
          + " ("
          + str(self.in_features)
          + " -> "
          + str(self.out_features)
          + ")"
      )
  
file_path: DIG/dig/ggraph/method/GraphAF/model/rgcn.py
imports: import numpy
  import torch
  import torch.nn
  import torch.nn.functional
label_desc: Use image node_id 4 for calling the RelationGraphConvolution obj's underlying member method code with example usage: obj.__repr__() and returns: unknown