code: def test_make_message(self, message, author):
      x = discuss._make_message(message)
      self.assertIsInstance(x, glm.Message)
      self.assertEqual("Hello", x.content)
      self.assertEqual(author, x.author)
  
imports: import copy
  import unittest.mock
  import google.ai.generativelanguage
  from google.generativeai import discuss
  from google.generativeai import client
  import google.generativeai
  from google.generativeai.types import safety_types
  from absl.testing import absltest
  from absl.testing import parameterized
label_desc: Use image node_id 2 for calling the UnitTests obj's underlying member method code with example usage: obj.test_make_message(message, author) without return types