code: def setUp(self):
      super().setUp()
      self.adapter = MathematicalEvaluation(self.chatbot)
  
imports: from tests.base_case import ChatBotTestCase
  from chatterbot.logic import MathematicalEvaluation
  from chatterbot.conversation import Statement
label_desc: Use image node_id 1 for calling the MathematicalEvaluationTests obj's underlying member method code with example usage: obj.setUp() without return types