// interface.
			// Mark all inbound packets.
			cfg.ruleBuilder.AppendRule(iptableslog.UndefinedCommand, constants.ISTIODIVERT, constants.MANGLE, "-j", constants.MARK, "--set-mark",
				cfg.cfg.InboundTProxyMark)
			cfg.ruleBuilder.AppendRule(iptableslog.UndefinedCommand, constants.ISTIODIVERT, constants.MANGLE, "-j", constants.ACCEPT)

	// without polluting the main table too much.

	// -t mangle -A PREROUTING -j ISTIO_PRERT
	iptablesBuilder.AppendRule(
		iptableslog.UndefinedCommand, iptablesconstants.PREROUTING, iptablesconstants.MANGLE,
		"-j", ChainInpodPrerouting,
	)

	// -t mangle -A OUTPUT -p tcp -j ISTIO_OUTPUT
	iptablesBuilder.AppendRule(
		iptableslog.UndefinedCommand, iptablesconstants.OUTPUT, iptablesconstants.MANGLE,
		"-j", ChainInpodOutput,
	)

   * separator between each, to {@code appendable}.
   *
   * @since 11.0
   */
  @CanIgnoreReturnValue
  public <A extends Appendable> A appendTo(A appendable, Iterator<? extends @Nullable Object> parts)
      throws IOException {
    checkNotNull(appendable);
    if (parts.hasNext()) {
      appendable.append(toString(parts.next()));
      while (parts.hasNext()) {
        appendable.append(separator);

   * separator between each, to {@code appendable}.
   *
   * @since 11.0
   */
  @CanIgnoreReturnValue
  public <A extends Appendable> A appendTo(A appendable, Iterator<? extends @Nullable Object> parts)
      throws IOException {
    checkNotNull(appendable);
    if (parts.hasNext()) {
      appendable.append(toString(parts.next()));
      while (parts.hasNext()) {
        appendable.append(separator);

        return in.read(cbuf, off, Math.max(len - 1024, 0));
      }
    };
  }

  /** Wrap an appendable in an appendable to defeat any type specific optimizations. */
  private static Appendable wrapAsGenericAppendable(final Appendable a) {
    return new Appendable() {

      @Override
      public Appendable append(CharSequence csq) throws IOException {
        a.append(csq);
        return this;
      }

        return in.read(cbuf, off, Math.max(len - 1024, 0));
      }
    };
  }

  /** Wrap an appendable in an appendable to defeat any type specific optimizations. */
  private static Appendable wrapAsGenericAppendable(final Appendable a) {
    return new Appendable() {

      @Override
      public Appendable append(CharSequence csq) throws IOException {
        a.append(csq);
        return this;
      }

		}
	}
}

func testStorageAPIRenameFile(t *testing.T, storage StorageAPI) {
	err := storage.AppendFile(context.Background(), "foo", "myobject", []byte("foo"))
	if err != nil {
		t.Fatalf("unexpected error %v", err)
	}

	err = storage.AppendFile(context.Background(), "foo", "otherobject", []byte("foo"))
	if err != nil {
		t.Fatalf("unexpected error %v", err)
	}

      throw new AssertionError(e);
    }
  }

  private static final Appendable NASTY_APPENDABLE =
      new Appendable() {
        @Override
        public Appendable append(@Nullable CharSequence csq) throws IOException {
          throw new IOException();
        }

        @Override
        public Appendable append(@Nullable CharSequence csq, int start, int end)
            throws IOException {

      }
    };
  }

  static Appendable separatingAppendable(
      Appendable delegate, String separator, int afterEveryChars) {
    checkNotNull(delegate);
    checkNotNull(separator);
    checkArgument(afterEveryChars > 0);
    return new Appendable() {
      int charsUntilSeparator = afterEveryChars;

      @Override
      public Appendable append(char c) throws IOException {

      throw new AssertionError(e);
    }
  }

  private static final Appendable NASTY_APPENDABLE =
      new Appendable() {
        @Override
        public Appendable append(@Nullable CharSequence csq) throws IOException {
          throw new IOException();
        }

        @Override
        public Appendable append(@Nullable CharSequence csq, int start, int end)
            throws IOException {