old_contents: import unittest
  
  from slacker.utils import get_item_id_by_name
  
  
  class TestGetItemIDByName(unittest.TestCase):
      def test_get_item_id_by_name(self):
          list_dict = [{'name': 'channel_name', 'id': '123'}, {}]
  
          self.assertEqual(
              '123', get_item_id_by_name(list_dict, 'channel_name')
          )
  
new_contents: import unittest
  
  from slacker.utils import get_item_id_by_name
  
  
  class TestGetItemIDByName(unittest.TestCase):
      def test_get_item_id_by_name(self):
          list_dict = [{'name': 'channel_name', 'id': '123'}, {}]
          self.assertEqual(
              '123', get_item_id_by_name(list_dict, 'channel_name')
          )
  
subject: Remove blank line