code: def testMassVertexAttributeAssignment(self):
      g = Graph.Full(5)
      g.vs.set_attribute_values("name", list(range(5)))
      self.assertTrue(
          g.vs.get_attribute_values("name") == list(range(5))
      )
      g.vs["name"] = list(range(5, 10))
      self.assertTrue(g.vs["name"] == list(range(5, 10)))
      g.vs["name2"] = (1, 2, 3, 4, 6)
      self.assertTrue(g.vs["name2"] == [1, 2, 3, 4, 6])
      g.vs.set_attribute_values("name", [2])
      self.assertTrue(g.vs["name"] == [2] * 5)
  
imports: import unittest
  from igraph import Graph
label_desc: Use image node_id 4 for calling the AttributeTests obj's underlying member method code with example usage: obj.testMassVertexAttributeAssignment() without return types