code: def testBug367(self):
      # This is a regression test for igraph/python-igraph#367
      g = Graph()
      g.add_vertices([1, 2, 5])
      self.assertEqual([1, 2, 5], g.vs["name"])
      self.assertEqual(2, g.vs.find(name=5).index)
  
imports: import unittest
  from igraph import Graph, Vertex, VertexSeq
  from .utils import is_pypy
label_desc: Use image node_id 22 for calling the VertexSeqTests obj's underlying member method code with example usage: obj.testBug367() without return types