docstr: Decide if a new edge should be added.
docstr_tok: ["Decide","if","a","new","edge","should","be","added","."]
code: def add_edge_or_not(self, a=None):
      """Decide if a new edge should be added."""
  
      return self.add_edge_agent(self.g, a)
  
imports: from functools import partial
  import dgl
  import torch
  import torch.nn
  import torch.nn.functional
  from torch.distributions import Bernoulli, Categorical
label_desc: Use image node_id 6 for calling the DGMG obj's underlying member method code with example usage: obj.add_edge_or_not(a) and returns: self