code: def testMassEdgeAttributeAssignment(self):
      g = Graph.Full(5)
      g.es.set_attribute_values("name", list(range(10)))
      self.assertTrue(
          g.es.get_attribute_values("name") == list(range(10))
      )
      g.es["name"] = list(range(10, 20))
      self.assertTrue(g.es["name"] == list(range(10, 20)))
      g.es["name2"] = (1, 2, 3, 4, 6, 1, 2, 3, 4, 6)
      self.assertTrue(g.es["name2"] == [1, 2, 3, 4, 6, 1, 2, 3, 4, 6])
      g.es.set_attribute_values("name", [2])
      self.assertTrue(g.es["name"] == [2] * 10)
  
imports: import unittest
  from igraph import Graph
label_desc: Use image node_id 5 for calling the AttributeTests obj's underlying member method code with example usage: obj.testMassEdgeAttributeAssignment() without return types