For Java, Groovy, Kotlin, and Android compatibility, see the [full compatibility notes](userguide/compatibility.html).   

## New features and usability improvements

<!-- Do not add breaking changes or deprecations here! Add them to the upgrade guide instead. -->

<!--

```Python
from typing import Union
from fastapi import Cookie, FastAPI, Header, Path, Query

app = FastAPI()


@app.get("/items/{item_id}")
def main(
    item_id: int = Path(gt=0),
    query: Union[str, None] = Query(default=None, max_length=10),
    session: Union[str, None] = Cookie(default=None, min_length=3),

// first time for this instance of [Once]. In other words, given
//
//	var once Once
//
// if once.Do(f) is called multiple times, only the first call will invoke f,
// even if f has a different value in each invocation. A new instance of
// Once is required for each function to execute.
//
// Do is intended for initialization that must be run exactly once. Since f

For Java, Groovy, Kotlin, and Android compatibility, see the [full compatibility notes](userguide/compatibility.html).   

## New features and usability improvements

<!-- Do not add breaking changes or deprecations here! Add them to the upgrade guide instead. -->

<!--

/**
 * [Lazy] values support Java serialization via a custom `writeReplace` method that forces their evaluation.
 */
class LazyCodecTest : AbstractFunctionalTypeTest() {

    @Test
    fun `forces evaluation of Lazy objects`() {
        assertEagerEvaluationOf(lazy()) {
            value
        }
    }

    @Test
    fun `forces evaluation of dynamic Lazy fields`() {
        assertEagerEvaluationOf(BeanOf(lazy())) {

	}

	// If there is mismatch in the nonce, that is a case of expired/stale nonce.
	// A nonce becomes stale following a newer nonce being sent to Envoy.
	// TODO: due to concurrent unsubscribe, this probably doesn't make sense. Do we need any logic here?
	if request.ResponseNonce != "" && request.ResponseNonce != previousInfo.NonceSent {
		deltaLog.Debugf("ADS:%s: REQ %s Expired nonce received %s, sent %s", stype,

	ads := s.ConnectDeltaADS().WithType(v3.EndpointType)
	nonce := ""
	sendEDSReqAndVerify := func(add, remove, expect []string) {
		t.Helper()
		res := ads.RequestResponseAck(&discovery.DeltaDiscoveryRequest{
			ResponseNonce:            nonce,
			ResourceNamesSubscribe:   add,
			ResourceNamesUnsubscribe: remove,
		})
		nonce = res.Nonce

import org.gradle.internal.serialize.graph.WriteContext
import org.gradle.internal.serialize.graph.decodeBean
import org.gradle.internal.serialize.graph.encodeBean


/**
 * Forces the given [bean] to be encoded via the [BeanCodec] regardless of its type.
 */
class BeanSpec(val bean: Any)


object BeanSpecCodec : Codec<BeanSpec> {

    override suspend fun WriteContext.encode(value: BeanSpec) =

      (b) You must cause any modified files to carry prominent notices
          stating that You changed the files; and

      (c) You must retain, in the Source form of any Derivative Works
          that You distribute, all copyright, patent, trademark, and
          attribution notices from the Source form of the Work,
          excluding those notices that do not pertain to any part of
          the Derivative Works; and

func reportAllEventsForProxyNoPush(con *Connection, statusReporter DistributionStatusCache, nonce string) {
	if statusReporter == nil {
		return
	}
	for distributionType := range AllTrackingEventTypes {
		statusReporter.RegisterEvent(con.ID(), distributionType, nonce)
	}
}

// reportEventsForUnWatched is to report events for unwatched types after push.