@CanIgnoreReturnValue
  public final Ordered containsAtLeast(
      @Nullable Object firstExpected,
      @Nullable Object secondExpected,
      @Nullable Object @Nullable ... restOfExpected) {
    return containsAtLeastElementsIn(accumulate(firstExpected, secondExpected, restOfExpected));
  }
@Test
  public void iterableContainsAtLeastFailsWithEmptyString() {
    expectFailureWhenTestingThat(asList("a", null)).containsAtLeast("", null);

    assertFailureKeys("missing (1)", "---", "expected to contain at least", "but was");
    assertFailureValue("missing (1)", "");
  }