code: def test_make_message_prompt_from_messages(self, prompt):
      x = discuss._make_message_prompt(prompt)
      self.assertIsInstance(x, glm.MessagePrompt)
      self.assertEqual(x.messages[0].content, "hello")
      return
  
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 7 for calling the UnitTests obj's underlying member method code with example usage: obj.test_make_message_prompt_from_messages(prompt) without return types