# Server-Sent Events (SSE) { #server-sent-events-sse }

You can stream data to the client using **Server-Sent Events** (SSE).

This is similar to [Stream JSON Lines](stream-json-lines.md), but uses the `text/event-stream` format, which is supported natively by browsers with the [`EventSource` API](https://developer.mozilla.org/en-US/docs/Web/API/EventSource).

/// info

Added in FastAPI 0.135.0.

///

 */
public class RestTestTransformer {
    /**
     * Transforms a REST test based on the requested {@link RestTestTransform}'s
     *
     * @param tests           The REST tests from the same file. Uses linked list so we can easily add to the beginning of the list.
     * @param transformations The set of transformations to perform against the test
     * @return the transformed tests
     */

func RootCAs(certPool *x509.CertPool) OperatorOption {
	return func(args *OperatorDNS) {
		args.rootCAs = certPool
	}
}

// NewOperatorDNS - initialize a new K8S Operator DNS set/unset values.
func NewOperatorDNS(endpoint string, setters ...OperatorOption) (Store, error) {
	if endpoint == "" {
		return nil, errors.New("invalid argument")
	}

	args := &OperatorDNS{
		Endpoint: endpoint,
	}

    </dependency>
    <!-- We redeclare the j2objc-annotations dependency from `guava`: Our Gradle
         Module Metadata hides the dependency declared in `guava` from runtime
         configurations downstream, and GWT uses the runtime configuration for
         its builds. Thus, GWT doesn't get j2objc-annotations transitively, in
         contrast to the other deps of `guava`, which it does get transitively.

/// note | 注意

`PATCH` 没有 `PUT` 知名，也没那么常用。

很多团队甚至只用 `PUT` 实现部分更新。

你可以**随意**选择如何使用它们，**FastAPI** 不做任何限制。

但本指南会大致展示它们的预期用法。

///

### 使用 Pydantic 的 `exclude_unset` 参数 { #using-pydantics-exclude-unset-parameter }

如果要接收部分更新，建议在 Pydantic 模型的 `.model_dump()` 中使用 `exclude_unset` 参数。

比如，`item.model_dump(exclude_unset=True)`。

这会生成一个 `dict`，只包含创建 `item` 模型时显式设置的数据，不包含默认值。

然后再用它生成一个只含已设置（在请求中发送）数据、且省略默认值的 `dict`：

        // Properties set should override defaults
        assertTrue(config.isUseMultiChannel());
        assertEquals(8, config.getMaxChannels());

        // Unset properties should use defaults
        assertEquals(1, config.getChannelBindingPolicy());
        assertEquals("adaptive", config.getLoadBalancingStrategy());
        assertEquals(10, config.getChannelHealthCheckInterval());

    /** The script engine type used for expression evaluation */
    private final String scriptType;

    /**
     * Default constructor that creates a DocBoostMatcher with default script type.
     * Uses the default script engine as defined in Constants.DEFAULT_SCRIPT.
     */
    public DocBoostMatcher() {
        scriptType = Constants.DEFAULT_SCRIPT;
    }

    /**

import java.security.cert.Certificate
import java.security.cert.X509Certificate
import java.util.ArrayDeque
import java.util.Deque
import javax.net.ssl.SSLPeerUnverifiedException

/**
 * A certificate chain cleaner that uses a set of trusted root certificates to build the trusted
 * chain. This class duplicates the clean chain building performed during the TLS handshake. We
 * prefer other mechanisms where they exist, such as with

     * @param targetDomain the target domain
     * @return session
     */
    SmbSession getSmbSession(CIFSContext tf, String targetHost, String targetDomain);

    /**
     * Checks if this transport uses the SMB2 protocol.
     *
     * @return whether this is a SMB2 connection
     * @throws SmbException if an error occurs checking protocol version
     */
    boolean isSMB2() throws SmbException;

    /**

Maven Logging

 {{{/maven-logging.html}End-user logging documentation}} is available {{{/maven-logging.html}in Maven site}}.
 This documentation is focused on internal implementation details.

* Logging API

 Maven uses
 {{{https://codehaus-plexus.github.io/plexus-containers/plexus-container-default/apidocs/org/codehaus/plexus/logging/package-summary.html}Plexus
 Container logging API}}, like any other Plexus components, ie