get() {
        val b3bit8 = mappedTo[0] and 0x80 != 0
        return if (b3bit8) 123 else 122
      }

    val b2: Int
      get() = mappedTo[0] and 0x7f
  }

  data class Inline2(
    override val rangeStart: Int,
    private val mappedTo: ByteString,
  ) : MappedRange {
    val b1: Int
      get() {
        val b2bit8 = mappedTo[0] and 0x80 != 0
        val b3bit8 = mappedTo[1] and 0x80 != 0

        sink.writeByte(ranges[rangesIndex + 2].code)
        sink.writeByte(ranges[rangesIndex + 3].code or 0x80)
      }
      127 -> {
        // Mapped inline to the sequence: [b2a, b3a].
        sink.writeByte(ranges[rangesIndex + 2].code or 0x80)
        sink.writeByte(ranges[rangesIndex + 3].code or 0x80)
      }
      else -> error("unexpected rangesIndex for $codePoint")
    }

    return true
  }

          when {
            b == 0x80 -> {
              // 10000000
              throw IOException("index == 0")
            }
            b and 0x80 == 0x80 -> {
              // 1NNNNNNN
              val index = readInt(b, PREFIX_7_BITS)
              readIndexedHeader(index - 1)
            }
            b == 0x40 -> {
              // 01000000

      // Encode '+' as '%2B' since we permit ' ' to be encoded as either '+' or '%20'.
      writeUtf8(if (alreadyEncoded) "+" else "%2B")
    } else if (codePoint < 0x20 ||
      codePoint == 0x7f ||
      codePoint >= 0x80 && !unicodeAllowed ||
      codePoint.toChar() in encodeSet ||
      codePoint == '%'.code &&
      (!alreadyEncoded || strict && !input.isPercentEncoded(i, limit))
    ) {

    assertThat(Buffer().writeUtf8("white\t space").isProbablyUtf8()).isTrue()
    assertThat(Buffer().writeByte(0x80).isProbablyUtf8()).isTrue()
    assertThat(Buffer().writeByte(0x00).isProbablyUtf8()).isFalse()
    assertThat(Buffer().writeByte(0xc0).isProbablyUtf8()).isFalse()
  }

	// map header, size 2
	// string "LimitInBytesPerSecond"
	o = append(o, 0x82, 0xb5, 0x4c, 0x69, 0x6d, 0x69, 0x74, 0x49, 0x6e, 0x42, 0x79, 0x74, 0x65, 0x73, 0x50, 0x65, 0x72, 0x53, 0x65, 0x63, 0x6f, 0x6e, 0x64)
	o = msgp.AppendInt64(o, z.LimitInBytesPerSecond)
	// string "CurrentBandwidthInBytesPerSecond"

		zb0001Mask |= 0x4
	}
	if z.DeleteMarker == nil {
		zb0001Len--
		zb0001Mask |= 0x8
	}
	// variable map header, size zb0001Len
	err = en.Append(0x80 | uint8(zb0001Len))
	if err != nil {
		return
	}
	if zb0001Len == 0 {
		return
	}
	// write "Type"
	err = en.Append(0xa4, 0x54, 0x79, 0x70, 0x65)
	if err != nil {
		return
	}
	err = en.WriteUint8(uint8(z.Type))

  private UnsignedBytes() {}

  /**
   * The largest power of two that can be represented as an unsigned {@code byte}.
   *
   * @since 10.0
   */
  public static final byte MAX_POWER_OF_TWO = (byte) 0x80;

  /**
   * The largest value that fits into an unsigned byte.
   *
   * @since 13.0
   */
  public static final byte MAX_VALUE = (byte) 0xFF;

  private static final int UNSIGNED_MASK = 0xFF;

  /**

	data := []byte{0x58, 0x4c, 0x32, 0x20, 0x1, 0x0, 0x3, 0x0, 0xc6, 0x0, 0x0, 0x3, 0xe8, 0x2, 0x1, 0x3, 0xc4, 0x24, 0x95, 0xc4, 0x10, 0x6a, 0x33, 0x51, 0xe3, 0x48, 0x0, 0x4e, 0xed, 0xab, 0x9, 0x21, 0xeb, 0x83, 0x5a, 0xc6, 0x45, 0xd3, 0x17, 0x21, 0xe7, 0xa1, 0x98, 0x52, 0x88, 0xc, 0xc4, 0x4, 0xfe, 0x54, 0xbc, 0x2f, 0x2, 0x0, 0xc4, 0xd5, 0x83, 0xa4, 0x54, 0x79, 0x70, 0x65, 0x2, 0xa6, 0x44, 0x65, 0x6c, 0x4f, 0x62, 0x6a, 0x83, 0xa2, 0x49, 0x44, 0xc4, 0x10, 0x6a, 0x33, 0x51, 0xe3, 0x48,...

          current.sourceCodePoint0,
          current.section + 0x7f,
          current.type,
          current.mappedTo,
        )
      current =
        Mapping(
          current.section + 0x80,
          current.sourceCodePoint1,
          current.type,
          current.mappedTo,
        )
    } else {
      result += current
      current = if (i.hasNext()) i.next() else break
    }
  }