code: def setUp(self):
      alg1 = TestAlgorithm()
      alg2 = TestAlgorithm()
      self.agent1 = TestAgent(alg1)
      self.agent2 = TestAgent(alg2)
  
imports: import unittest
  import parl
label_desc: Use image node_id 1 for calling the AgentBaseTest obj's underlying member method code with example usage: obj.setUp() without return types