code: def deterministic_labels(self, G):
      node_labels = list(G.nodes)
      node_labels = sorted(
          node_labels, key=lambda n: sorted(G.nodes[n]["group"])[0]
      )
      node_labels.sort()
  
      label_mapping = {}
      for index, node in enumerate(node_labels):
          label = "Supernode-%s" % index
          label_mapping[node] = label
  
      return nx.relabel_nodes(G, label_mapping)
  
imports: import pytest
  import networkx
label_desc: Use image node_id 4 for calling the AbstractSNAP obj's underlying member method code with example usage: obj.deterministic_labels(G) and returns: nx