return LockContext{ctx: newCtx, cancel: cancel}, nil
}

// Unlock - block until write lock is released.
func (di *distLockInstance) Unlock(lc LockContext) {
	if lc.cancel != nil {
		lc.cancel()
	}
	di.rwMutex.Unlock(context.Background())
}

// RLock - block until read lock is taken or timeout has occurred.

// Bytes returns a slice of length b.Len() holding the unread portion of the buffer.
// The slice is valid for use only until the next buffer modification (that is,
// only until the next call to a method like [Buffer.Read], [Buffer.Write], [Buffer.Reset], or [Buffer.Truncate]).
// The slice aliases the buffer content at least until the next buffer modification,
// so immediate changes to the slice will affect the result of future reads.

val javaParserVersion = "3.18.0"
// Note: this currently still contains 3/4 logic as we will temporarily have Groovy 3 for the build itself until we move to a Gradle built with Groovy 4
// It can be removed or changed to 4/5 logic (if necessary) at that point.
val groovyVersion = GroovySystem.getVersion()
val isGroovy4 = VersionNumber.parse(groovyVersion).major >= 4

	}
	return st
}

// Bypass retention governance header.
const (
	AmzObjectLockBypassRetGovernance = "X-Amz-Bypass-Governance-Retention"
	AmzObjectLockRetainUntilDate     = "X-Amz-Object-Lock-Retain-Until-Date"
	AmzObjectLockMode                = "X-Amz-Object-Lock-Mode"
	AmzObjectLockLegalHold           = "X-Amz-Object-Lock-Legal-Hold"
)

var (

            setAttribute(XMLConstants.ACCESS_EXTERNAL_SCHEMA, "")
        }.newDocumentBuilder()
            .parse(url)
            .getElementsByTagName("version").let { versions ->
                (0 until versions.length)
                    .map { idx -> (versions.item(idx) as Element).textContent }
                    .reversed()
            }

    protected

            KeyMap<Binding> keyMap = reader.getKeyMaps().get("main");
            keyMap.bind(new Reference("tailtip-toggle"), KeyMap.alt("s"));

            // start the shell and process input until the user quits with Ctrl-D
            AtomicReference<Exception> failure = new AtomicReference<>();
            while (true) {
                try {
                    failure.set(null);

	ctxCanceler context.CancelFunc
}

// start - starts separate goroutine for each TCP listener.  A valid new connection is passed to httpListener.acceptCh.
func (listener *httpListener) start() {
	// Closure to handle listener until httpListener.ctxDoneCh channel is closed.
	handleListener := func(idx int, ln net.Listener) {
		for {
			conn, err := ln.Accept()
			select {
			case listener.acceptCh <- acceptResult{conn, err, idx}:

    fun allVersionsAreIncludedInCrossVersionTests() {
        assertEquals("0.0", ALL_CROSS_VERSION_BUCKETS[0][0])
        assertEquals("99.0", ALL_CROSS_VERSION_BUCKETS[ALL_CROSS_VERSION_BUCKETS.size - 1][1])

        (1 until ALL_CROSS_VERSION_BUCKETS.size).forEach {
            assertEquals(ALL_CROSS_VERSION_BUCKETS[it - 1][1], ALL_CROSS_VERSION_BUCKETS[it][0])
        }
    }

	// data that describes the next file. These meta data "files" should not
	// normally be visible to the outside. As such, this loop iterates through
	// one or more "header files" until it finds a "normal file".
	format := FormatUSTAR | FormatPAX | FormatGNU
	for {
		// Discard the remainder of the file and any padding.
		if err := discard(tr.r, tr.curr.physicalRemaining()); err != nil {
			return nil, err

In this case, the `startup` event handler function will initialize the items "database" (just a `dict`) with some values.

You can add more than one event handler function.

And your application won't start receiving requests until all the `startup` event handlers have completed.

### `shutdown` event { #shutdown-event }

To add a function that should be run when the application is shutting down, declare it with the event `"shutdown"`: