assertEquals("abc", permissionHelper.encode("abc"));
        assertEquals("abc", permissionHelper.decode("abc"));

        assertEquals("special@chars", permissionHelper.encode("special@chars"));
        assertEquals("special@chars", permissionHelper.decode("special@chars"));
    }

   * @param url the URL to read from
   * @param charset the charset used to decode the input stream; see {@link StandardCharsets} for
   *     helpful predefined constants
   * @return a string containing all the characters from the URL
   * @throws IOException if an I/O error occurs.
   */
  public static String toString(URL url, Charset charset) throws IOException {
    return asCharSource(url, charset).read();
  }

  /**

  }

internal fun MediaType?.chooseCharset(): Pair<Charset, MediaType?> {
  var charset: Charset = Charsets.UTF_8
  var finalContentType: MediaType? = this
  if (this != null) {
    val resolvedCharset = this.charset()
    if (resolvedCharset == null) {
      charset = Charsets.UTF_8
      finalContentType = "$this; charset=utf-8".toMediaTypeOrNull()
    } else {
      charset = resolvedCharset
    }
  }

    val mediaType = parse("text/plain; charset=utf-8; charset=UTF-8")
    assertEquals("UTF-8", mediaType.charsetName())
  }

  @Test fun testMultipleCharsetsReturnsFirstMatch() {
    val mediaType = parse("text/plain; charset=utf-8; charset=utf-16")
    assertEquals("UTF-8", mediaType.charsetName())
  }

  /**
   * This is invalid according to RFC 822. But it's what Chrome does and it avoids a potentially

    }

    public void test_execute_withSpecialCharactersInConfig() {
        // Configure field and index names with special characters
        expiresFieldName = "expires-field.with@special#chars";
        documentUpdateIndex = "fess.update-index$special%chars";

        // Re-register FessConfig with updated values
        fessConfig = new TestFessConfig() {
            @Override
            public String getIndexFieldExpires() {

    }
  }

  /**
   * A char sink that encodes written characters with a charset and writes resulting bytes to this
   * byte sink.
   */
  private final class AsCharSink extends CharSink {

    private final Charset charset;

    private AsCharSink(Charset charset) {
      this.charset = checkNotNull(charset);
    }

    @Override

    }
  }

  /**
   * A char sink that encodes written characters with a charset and writes resulting bytes to this
   * byte sink.
   */
  private final class AsCharSink extends CharSink {

    private final Charset charset;

    private AsCharSink(Charset charset) {
      this.charset = checkNotNull(charset);
    }

    @Override

            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