text: import github3
  
  from .helper import IntegrationHelper
  
  
  class TestMilestone(IntegrationHelper):
      def test_delete(self):
          """Test the ability to delete a milestone."""
          self.token_login()
          cassette_name = self.cassette_name('delete')
          with self.recorder.use_cassette(cassette_name):
              repository = self.gh.repository('sigmavirus24', 'github3.py')
              milestone = repository.milestone(14)
              assert milestone.delete() is True
  
      def test_update(self):
          """Test the ability to update a milestone."""
          self.token_login()
          cassette_name = self.cassette_name('update')
          with self.recorder.use_cassette(cassette_name):
              repository = self.gh.repository('sigmavirus24', 'github3.py')
              milestone = repository.milestone(14)
              assert milestone.update(
                  title='integration', description='delete me'
              ) is True
  
      def test_labels(self):
          """Test the ability to iterate over milestone labels."""
          cassette_name = self.cassette_name('labels')
          with self.recorder.use_cassette(cassette_name):
              issue = self.gh.issue('sigmavirus24', 'github3.py', 206)
              milestone = issue.milestone
              assert milestone is not None
              for label in milestone.labels():
                  assert isinstance(label, github3.issues.label.Label)
  