old_contents: """Test praw.models.front."""
  from praw.models.listing.generator import ListingGenerator
  
  from ... import UnitTest
  
  
  class TestListingGenerator(UnitTest):
      def test_params_are_not_modified(self):
          params = {"prawtest": "yes"}
          generator = ListingGenerator(None, None, params=params)
          assert "limit" in generator.params
          assert "limit" not in params
          assert ("prawtest", "yes") in generator.params.items()
  
new_contents: """Test praw.models.listing.generator."""
  from praw.models.listing.generator import ListingGenerator
  
  from ... import UnitTest
  
  
  class TestListingGenerator(UnitTest):
      def test_params_are_not_modified(self):
          params = {"prawtest": "yes"}
          generator = ListingGenerator(None, None, params=params)
          assert "limit" in generator.params
          assert "limit" not in params
          assert ("prawtest", "yes") in generator.params.items()
  
subject: Fix docstring typo in ListingGenerator unit tests