@Override
          public int size() {
            return ImmutableSortedMap.this.size();
          }

          // redeclare to help optimizers with b/310253115
          @SuppressWarnings("RedundantOverride")
          @Override
          @J2ktIncompatible
          @GwtIncompatible
                    Object writeReplace() {
            return super.writeReplace();
          }
        };
      }

            @Override
            boolean isPartialView() {
              return true;
            }

            // redeclare to help optimizers with b/310253115
            @SuppressWarnings("RedundantOverride")
            @Override
            @J2ktIncompatible
            @GwtIncompatible
                        Object writeReplace() {
              return super.writeReplace();
            }