Table<Integer, String, Character> table =
                        ArrayTable.create(ImmutableList.of(1, 2), ImmutableList.copyOf(elements));
                    populateForColumnKeySet(table, elements);
                    return table.columnKeySet();
                  }
                })
            .named("ArrayTable.columnKeySet")
            .withFeatures(

                    Table<Integer, String, Character> table =
                        ArrayTable.create(ImmutableList.of(1, 2), ImmutableList.copyOf(elements));
                    populateForColumnKeySet(table, elements);
                    return table.columnKeySet();
                  }
                })
            .named("ArrayTable.columnKeySet")
            .withFeatures(