* currentEntry (which we never subsequently clear).
       */
      int frequency = requireNonNull(currentEntry).getValue().get();
      if (frequency <= 0) {
        throw new ConcurrentModificationException();
      }
      if (currentEntry.getValue().addAndGet(-1) == 0) {
        entryIterator.remove();
      }
      size--;
      canRemove = false;
    }
  }

  @Override

                        @Override
                        public String setValue(String value) {
                          checkNotNull(value);
                          return next.setValue(value);
                        }

                        @Override
                        public String getValue() {
                          return next.getValue();
                        }

                        @Override

        setupEpg(_epgMap, et -> ((RoleType) et).getUpdatedTime(), (et, vl) -> ((RoleType) et).setUpdatedTime(DfTypeUtil.toLong(vl)),
                "updatedTime");
        setupEpg(_epgMap, et -> ((RoleType) et).getValue(), (et, vl) -> ((RoleType) et).setValue(DfTypeUtil.toString(vl)), "value");
    }

    @Override
    public PropertyGateway findPropertyGateway(final String prop) {
        return doFindEpg(_epgMap, prop);
    }

    }

    @Override
    public V getValue() {
      assertTrue(Thread.holdsLock(mutex));
      return super.getValue();
    }

    @Override
    public int hashCode() {
      assertTrue(Thread.holdsLock(mutex));
      return super.hashCode();
    }

    @Override
    public V setValue(V value) {
      assertTrue(Thread.holdsLock(mutex));
      return super.setValue(value);
    }

    }

    @Override
    @ParametricNullness
    public V setValue(@ParametricNullness V value) {
      Map<K, V> delegate = delegateOrNull();
      if (delegate != null) {
        return uncheckedCastNullableTToT(delegate.put(key, value)); // See discussion in getValue().
      }
      updateLastKnownIndex();
      if (lastKnownIndex == -1) {
        put(key, value);

                (et, vl) -> ((RequestHeader) et).setUpdatedTime(DfTypeUtil.toLong(vl)), "updatedTime");
        setupEpg(_epgMap, et -> ((RequestHeader) et).getValue(), (et, vl) -> ((RequestHeader) et).setValue(DfTypeUtil.toString(vl)),
                "value");
        setupEpg(_epgMap, et -> ((RequestHeader) et).getWebConfigId(),

      ImmutableListMultimap.Builder<String, String> builder = ImmutableListMultimap.builder();
      for (Entry<String, String> entry : entries) {
        builder.put(entry.getKey(), entry.getValue());
      }
      return builder.build();
    }
  }

  @J2ktIncompatible
  @AndroidIncompatible // test-suite builders
  public static class ImmutableListMultimapCopyOfEntriesGenerator

      ImmutableSetMultimap.Builder<String, String> builder = ImmutableSetMultimap.builder();
      for (Entry<String, String> entry : entries) {
        builder.put(entry.getKey(), entry.getValue());
      }
      return builder.build();
    }
  }

  @J2ktIncompatible
  @AndroidIncompatible // test-suite builders
  private static final class ImmutableSetMultimapCopyOfEntriesGenerator

        setupEpg(_epgMap, et -> ((LabelType) et).getUpdatedTime(), (et, vl) -> ((LabelType) et).setUpdatedTime(DfTypeUtil.toLong(vl)),
                "updatedTime");
        setupEpg(_epgMap, et -> ((LabelType) et).getValue(), (et, vl) -> ((LabelType) et).setValue(DfTypeUtil.toString(vl)), "value");
        setupEpg(_epgMap, et -> ((LabelType) et).getVirtualHost(), (et, vl) -> ((LabelType) et).setVirtualHost(DfTypeUtil.toString(vl)),
                "virtualHost");

                          &numerical_grad_raw);
    ASSERT_EQ(errors::OK, s.code()) << s.message();
    numerical_grad.reset(numerical_grad_raw);
  }

  TF_Tensor* numerical_tensor;
  s = GetValue(numerical_grad.get(), &numerical_tensor);
  ASSERT_EQ(errors::OK, s.code()) << s.message();
  auto num_elem_numerical = TF_TensorElementCount(numerical_tensor);
  ASSERT_EQ(num_elem_numerical, num_grad);