code: def test_add_nodes_from_non_string(self):
      self.G.add_nodes_from([1, 2, 3, 4])
      self.assertCountEqual(list(self.G.nodes()), [1, 2, 3, 4])
  
imports: import unittest
  import networkx
  import pandas
  import numpy
  from pgmpy.models import NaiveBayes
  from pgmpy.independencies import Independencies
label_desc: Use image node_id 8 for calling the TestBaseModelCreation obj's underlying member method code with example usage: obj.test_add_nodes_from_non_string() without return types