for (Map.Entry<K, V> entry : map.entrySet()) {
      stream.writeObject(entry.getKey());
      stream.writeObject(entry.getValue());
    }
  }

  /**
   * Populates a map by reading an input stream, as part of deserialization. See {@link #writeMap}
   * for the data format.
   */
  static <K extends @Nullable Object, V extends @Nullable Object> void populateMap(

{* ../../docs_src/json_base64_bytes/tutorial001_py310.py ln[1:2,12:16,29,38:41] hl[16] *}

## Pydantic `bytes` for Input and Output Data { #pydantic-bytes-for-input-and-output-data }

And of course, you can use the same model configured to use base64 to handle both input (*validate*) with `val_json_bytes` and output (*serialize*) with `ser_json_bytes` when receiving and sending JSON data.

  @Param({"xxxx", "xxXx", "xXxX", "XXXX"})
  String text;

  private String input;

  private static final Splitter CHAR_SPLITTER = Splitter.on('X');
  private static final Splitter STRING_SPLITTER = Splitter.on("X");

  @BeforeExperiment
  @SuppressWarnings("InlineMeInliner") // String.repeat unavailable under Java 8
  void setUp() {
    input = Strings.repeat(text, length);
  }

  @Benchmark
  int charSplitter(int reps) {

	testcases := []struct {
		input            string
		err              error
		excludedPrefixes []string
		excludeFolders   bool
	}{
		{
			input: `<VersioningConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
                                  <Status>Enabled</Status>
                                </VersioningConfiguration>`,
			err: nil,
		},
		{

        String[] inputs = { "input" };
        CharMappingItem item = new CharMappingItem(1L, inputs, "line1\nline2");

        assertEquals("line1 line2", item.getOutput());
    }

    @Test
    public void test_constructor_withNullOutput() {
        // Test with null output
        String[] inputs = { "input" };
        CharMappingItem item = new CharMappingItem(1L, inputs, null);

 * Executor)} on the input step.
 *
 * <h4>Catching</h4>
 *
 * To derive the next step from a failed input step, call {@link #catching(Class, ClosingFunction,
 * Executor)} or {@link #catchingAsync(Class, AsyncClosingFunction, Executor)} on the input step.
 *
 * <h4>Combining</h4>
 *
 * To derive a {@code ClosingFuture} from two or more input steps, pass the input steps to {@link

    HashMultimap<String, Integer> input = HashMultimap.create();
    input.put("foo", 1);
    input.put("bar", 2);
    input.put("foo", 3);
    Multimap<String, Integer> multimap = ImmutableSetMultimap.copyOf(input);
    assertEquals(multimap, input);
    assertEquals(input, multimap);
  }

  public void testCopyOfWithDuplicates() {
    ArrayListMultimap<Object, Object> input = ArrayListMultimap.create();

   * input}.
   *
   * @return the number of bytes written
   * @throws IOException if an I/O occurs while reading from {@code input} or writing to this sink
   */
  @CanIgnoreReturnValue
  public long writeFrom(InputStream input) throws IOException {
    checkNotNull(input);

    try (OutputStream out = openStream()) {

    }

    @Test
    public void test_distinct_singleElement() {
        // Test distinct with single element
        String[] input = new String[] { "element" };
        String[] result = invokeDistinct(input);
        assertSame(input, result);
    }

    @Test
    public void test_distinct_noDuplicates() {
        // Test distinct with no duplicates

    }

    @Nonnull
    default T read(@Nonnull InputStream input) throws XmlReaderException {
        return read(input, true);
    }

    @Nonnull
    default T read(@Nonnull InputStream input, boolean strict) throws XmlReaderException {
        return read(XmlReaderRequest.builder().inputStream(input).strict(strict).build());
    }

    @Nonnull