public void isNotIn(@Nullable Iterable<?> iterable) {
    checkNotNull(iterable);
    if (Iterables.contains(iterable, actual)) {
      failWithActual("expected not to be any of", iterable);
    }
  }
@Test
  public void isNotInFailure() {
    expectFailure.whenTesting().that("b").isNotIn(oneShotIterable("a", "b", "c"));
    assertFailureKeys("expected not to be any of", "but was");
    assertFailureValue("expected not to be any of", "[a, b, c]");
  }