@CanIgnoreReturnValue
  public final Ordered containsAtLeast(
      @Nullable Object k0, @Nullable Object v0, @Nullable Object... rest) {
    return containsAtLeastEntriesIn(accumulateMultimap(k0, v0, rest));
  }
@Test
  public void containsAtLeastVarargWithNull() {
    Multimap<Integer, String> listMultimap =
        LinkedListMultimap.create(ImmutableListMultimap.of(1, "one", 3, "six", 3, "two"));
    listMultimap.put(4, null);

    assertThat(listMultimap).containsAtLeast(1, "one", 3, "two", 4, null);
  }