throw IOException("FRAME_SIZE_ERROR: $length")
    }
    val type = source.readByte() and 0xff
    val flags = source.readByte() and 0xff
    val streamId = source.readInt() and 0x7fffffff // Ignore reserved bit.
    if (type != TYPE_WINDOW_UPDATE && logger.isLoggable(FINE)) {
      logger.fine(frameLog(true, streamId, length, type, flags))
    }

    if (requireSettings && type != TYPE_SETTINGS) {

        || (stimuli.length >= 5 && removes > 2)) {
      // removes are the most expensive thing to test, since they often throw exceptions with stack
      // traces, so we test them a bit less aggressively
      return;
    }

    MultiExceptionListIterator reference = new MultiExceptionListIterator(expectedElements);
    I target = newTargetIterator();
    for (int i = 0; i < stimuli.length; i++) {

To do that, first build all the docs:

<div class="termy">

```console
// Use the command "build-all", this will take a bit
$ python ./scripts/docs.py build-all

Building docs for: en
Building docs for: es
Successfully built docs for: es
```

</div>

**FastAPI** is all based on these type hints, they give it many advantages and benefits.

But even if you never use **FastAPI**, you would benefit from learning a bit about them.

/// note

If you are a Python expert, and you already know everything about type hints, skip to the next chapter.

///

## Motivation { #motivation }

Let's start with a simple example:

    }

    NbtAddress doNameQuery(final Name name, InetAddress svr) throws UnknownHostException {
        NbtAddress addr;

        if (name.hexCode == 0x1d && svr == null) {
            svr = this.baddr; // bit of a hack but saves a lookup
        }
        name.srcHashCode = svr != null ? svr.hashCode() : 0;
        addr = getCachedAddress(name);

        /*
         * This is almost exactly like InetAddress.java. See the

  // Timed Get
  // There are a few design constraints to consider
  // * We want to be responsive to small timeouts, unpark() has non trivial latency overheads (I
  //   have observed 12 micros on 64-bit linux systems to wake up a parked thread). So if the
  //   timeout is small we shouldn't park(). This needs to be traded off with the cpu overhead of

   * tables, that otherwise encounter collisions for hash codes that do not differ in lower or upper
   * bits.
   *
   * @param h hash code
   */
  static int rehash(int h) {
    // Spread bits to regularize both segment and index locations,
    // using variant of single-word Wang/Jenkins hash.
    // TODO(kevinb): use Hashing/move this to Hashing?

	if err != nil {
		// Static params, so this is very unlikely.
		logger.Fatal(err, "Unable to initialize server")
	}
	return gz
}()

// Set of handler options as bit flags
type hFlag uint8

const (
	// this flag disables gzip compression of responses
	noGZFlag = 1 << iota

	// this flag enables tracing body and headers instead of just headers
	traceAllFlag

	SLLIUW		$31, X17, X18			// 1b99f809
	SLLIUW		$63, X17			// 9b98f80b
	SLLIUW		$63, X17, X18			// 1b99f80b
	SLLIUW		$1, X18, X19			// 9b191908

	//
	// "B" Extension for Bit Manipulation, Version 1.0.0
	//

	// 28.4.2: Basic Bit Manipulation (Zbb)
	ANDN	X19, X20, X21				// b37a3a41 or 93caf9ffb37a5a01
	ANDN	X19, X20				// 337a3a41 or 93cff9ff337afa01
	CLZ	X20, X21				// 931a0a60
	CLZW	X21, X22				// 1b9b0a60

	WrittenByVersion uint64                `msg:"v"` // Tracks written by MinIO version
}

// xlFlags contains flags on the object.
// This can be extended up to 64 bits without breaking compatibility.
type xlFlags uint8

const (
	xlFlagFreeVersion xlFlags = 1 << iota
	xlFlagUsesDataDir
	xlFlagInlineData
)

func (x xlFlags) String() string {
	var s strings.Builder