new_contents: import unittest
  from unittest.mock import MagicMock
  from phial.commands import help_command
  
  
  class TestHelpCommand(unittest.TestCase):
      def test_help_command(self):
          bot = MagicMock()
          command = MagicMock()
          command._help = "Test description"
          bot.commands = {"test_pattern": command}
          bot.command_names = {"test_pattern": "test"}
  
          expected_help_text = "*test* - Test description\n"
  
          help_text = help_command(bot)
          self.assertEqual(help_text, expected_help_text)
  
subject: Add test for help command