SortedSet<@Nullable String> keySet = multimap.keySet();

    assertEquals(null, keySet.first());
    assertEquals("google", keySet.last());
    assertEquals(StringLength.COMPARATOR, keySet.comparator());
    assertEquals(Sets.<@Nullable String>newHashSet(null, "tree"), keySet.headSet("yahoo"));
    assertEquals(newHashSet("google"), keySet.tailSet("yahoo"));

    return delegate().put(key, value);
  }

  @Override
  public void putAll(Map<? extends K, ? extends V> map) {
    delegate().putAll(map);
  }

  @Override
  public Set<K> keySet() {
    return delegate().keySet();
  }

  @Override
  public Collection<V> values() {
    return delegate().values();
  }

  @Override
  public Set<Entry<K, V>> entrySet() {
    return delegate().entrySet();

  protected final void assertInvariants(Map<K, V> map) {
    Set<K> keySet = map.keySet();
    Collection<V> valueCollection = map.values();
    Set<Entry<K, V>> entrySet = map.entrySet();

    assertEquals(map.size() == 0, map.isEmpty());
    assertEquals(map.size(), keySet.size());
    assertEquals(keySet.size() == 0, keySet.isEmpty());
    assertEquals(!keySet.isEmpty(), keySet.iterator().hasNext());

    int expectedKeySetHash = 0;

    }

    private boolean isClassFieldConstructorOrMethod(JApiCompatibility member) {
        return member instanceof JApiClass || member instanceof JApiField || member instanceof JApiConstructor || member instanceof JApiMethod;
    }

    private boolean isInject(JApiCompatibility member) {
        return member instanceof JApiHasAnnotations && isInject((JApiHasAnnotations) member);
    }

    }

    @Override
    public Violation maybeViolation(final JApiCompatibility member) {
        if (member instanceof JApiMethod || member instanceof JApiField || member instanceof JApiClass || member instanceof JApiConstructor) {
            if (!isIncubating((JApiHasAnnotations) member) && !isInject((JApiHasAnnotations) member)) {
                return violationError(member);
            }
        }
        return null;
    }

        return true;
      }
    }
    return false;
  }

  private boolean isIgnored(Member member) {
    return member.isSynthetic()
        || ignoredMembers.contains(member)
        || isEquals(member)
        /*
         * We can assume that Kotlin code is performing the null checks that we want, since kotlinc

      @Override
      public UnmodifiableIterator<E> iterator() {
        Iterable<E> incidentEdges =
            (selfLoopCount == 0)
                ? Iterables.concat(inEdgeMap.keySet(), outEdgeMap.keySet())
                : Sets.union(inEdgeMap.keySet(), outEdgeMap.keySet());
        return Iterators.unmodifiableIterator(incidentEdges.iterator());
      }

      @Override
      public int size() {

	DB.Create(&member)

	var profile Profile
	if err := DB.First(&profile, "id = ?", member.Profile.ID).Error; err != nil {
		t.Fatalf("failed to find profile, got error: %v", err)
	} else if profile.MemberID != member.ID {
		t.Fatalf("member id is not equal: expects: %v, got: %v", member.ID, profile.MemberID)
	}

	member.Profile = Profile{}
	DB.Model(&member).Update("Refer", 100)

        return true;
      }
    }
    return false;
  }

  private boolean isIgnored(Member member) {
    return member.isSynthetic()
        || ignoredMembers.contains(member)
        || isEquals(member)
        /*
         * We can assume that Kotlin code is performing the null checks that we want, since kotlinc

    assertEquals("[" + JOINER.join(map.keySet()) + "]", map.keySet().toString());
    assertEquals("[" + JOINER.join(map.values()) + "]", map.values().toString());

    assertEquals(new HashSet<>(map.entrySet()), map.entrySet());
    assertEquals(new HashSet<>(map.keySet()), map.keySet());
  }