plusIsSpace = false,
            charset = charset,
          )
        values +=
          value.canonicalizeWithCharset(
            encodeSet = FORM_ENCODE_SET,
            // Plus is encoded as `%2B`, space is encoded as plus.
            plusIsSpace = false,
            charset = charset,
          )
      }

      fun addEncoded(
        name: String,

  }

  public void testForStringsCharset() {
    for (Charset charset : Charset.availableCharsets().values()) {
      PrimitiveSink primitiveSink = mock(PrimitiveSink.class);
      Funnels.stringFunnel(charset).funnel("test", primitiveSink);
      verify(primitiveSink).putString("test", charset);
    }
  }

  public void testForStringsCharset_null() {
    for (Charset charset : Charset.availableCharsets().values()) {

            - chunk_size
            - charset
            - status_code
            - media_type
            - body
            - background
            - raw_headers
            - render
            - init_headers
            - headers
            - set_cookie
            - delete_cookie

::: fastapi.responses.HTMLResponse
    options:
        members:
            - charset
            - status_code

    if (allBmp(string)) {
      assertHash(expected, murmur3_32().hashString(string, charset));
    }
    assertHash(expected, murmur3_32_fixed().hashString(string, charset));
    assertHash(expected, murmur3_32().newHasher().putString(string, charset).hash());
    assertHash(expected, murmur3_32_fixed().newHasher().putString(string, charset).hash());

      .assertLogEqual("Content-Type: text/plain; charset=utf-8")
      .assertLogEqual("--> END POST")
      .assertLogMatch(Regex("""<-- 200 OK $url \(\d+ms\)"""))
      .assertLogEqual("Content-Length: 0")
      .assertLogEqual("<-- END HTTP")
      .assertNoMoreLogs()
    networkLogs
      .assertLogEqual("--> POST $url http/1.1")
      .assertLogEqual("Content-Type: text/plain; charset=utf-8")

   */
  class AsCharSource extends CharSource {

    final Charset charset;

    AsCharSource(Charset charset) {
      this.charset = checkNotNull(charset);
    }

    @Override
    public ByteSource asByteSource(Charset charset) {
      if (charset.equals(this.charset)) {
        return ByteSource.this;
      }

        Ordering<Integer> ord,
        Charset charset,
        TimeUnit unit,
        Class<?> cls,
        Joiner joiner,
        Pattern pattern,
        UnsignedInteger ui,
        UnsignedLong ul,
        StringBuilder sb,
        Predicate<?> pred,
        Function<?, ?> func,
        Object obj) {
      delegate.foo(
          s, r, n, it, b, eq, e, in, c, ord, charset, unit, cls, joiner, pattern, ui, ul, sb, pred,

      k1 = mixK1(k1);
      h1 ^= k1;
    }

    return fmix(h1, Chars.BYTES * input.length());
  }

  @Override
  public HashCode hashString(CharSequence input, Charset charset) {
    if (charset.equals(UTF_8)) {
      int utf16Length = input.length();
      int h1 = seed;
      int i = 0;
      int len = 0;

      // This loop optimizes for pure ASCII.

  private final class AsByteSource extends ByteSource {

    final Charset charset;

    AsByteSource(Charset charset) {
      this.charset = checkNotNull(charset);
    }

    @Override
    public CharSource asCharSource(Charset charset) {
      if (charset.equals(this.charset)) {
        return CharSource.this;
      }

  private final class AsByteSource extends ByteSource {

    final Charset charset;

    AsByteSource(Charset charset) {
      this.charset = checkNotNull(charset);
    }

    @Override
    public CharSource asCharSource(Charset charset) {
      if (charset.equals(this.charset)) {
        return CharSource.this;
      }