}
                })
            .named("TreeMultiset[Ordering.natural].elementSet")
            .withFeatures(
                CollectionSize.ANY,
                CollectionFeature.REMOVE_OPERATIONS,
                CollectionFeature.ALLOWS_NULL_QUERIES)
            .createTestSuite());
    suite.addTestSuite(TreeMultisetTest.class);
    return suite;
  }

  public void testCreate() {

                    list, from -> isNullOrEmpty(from) ? null : from.substring(1));
              }
            })
        .named("Collections2.transform")
        .withFeatures(
            CollectionFeature.REMOVE_OPERATIONS,
            CollectionFeature.ALLOWS_NULL_VALUES,
            CollectionFeature.KNOWN_ORDER,
            CollectionSize.ANY)
        .createTestSuite();
  }

  @J2ktIncompatible

                  }
                })
            .named("TreeMultimap.keySet")
            .withFeatures(
                CollectionFeature.ALLOWS_NULL_VALUES,
                CollectionFeature.REMOVE_OPERATIONS,
                CollectionFeature.KNOWN_ORDER,
                CollectionSize.ANY)
            .createTestSuite());
    suite.addTest(
        NavigableMapTestSuiteBuilder.using(