fun writeBoolean(b: Boolean) {
    sink().writeByte(if (b) -1 else 0)
  }

  fun writeBigInteger(value: BigInteger) {
    sink().write(value.toByteArray())
  }

  fun writeLong(v: Long) {
    val sink = sink()

    val lengthBitCount: Int =
      if (v < 0L) {
        65 - java.lang.Long.numberOfLeadingZeros(v xor -1L)
      } else {