/**
 * Handles profile injection into the model.
 *
 * @deprecated use {@link org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface ProfileInjector {

    /**
     * Merges values from the specified profile into the given model. Implementations are expected to keep the profile

	"net/netip"
)

type IPSet struct {
	V4Name string
	V6Name string
	Prefix string
	Deps   NetlinkIpsetDeps
}

const (
	V4Name = "%s-v4"
	V6Name = "%s-v6"
)

type NetlinkIpsetDeps interface {
	ipsetIPHashCreate(name string, v6 bool) error
	destroySet(name string) error
	addIP(name string, ip netip.Addr, ipProto uint8, comment string, replace bool) error
	deleteIP(name string, ip netip.Addr, ipProto uint8) error

        return this;
    }

    public TypeMetaData setLowerBounds(TypeMetaData lowerBounds) {
        this.lowerBounds = lowerBounds;
        return this;
    }

    public interface SignatureVisitor {
        void visitText(String text);

        void visitType(String name);
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {

		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
	return out
}

func check(err error) {
	if err != nil {
		fail(err.Error())
	}
}

func fail(msg string, v ...interface{}) {
	fmt.Fprintf(os.Stderr, msg, v...)
	fmt.Fprintln(os.Stderr)
	os.Exit(1)

import org.apache.maven.model.Model;

/**
 * Builds the effective model from a POM.
 *
 * @deprecated use {@link org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface ModelBuilder {

    /**
     * Builds the effective model of the specified POM.
     *
     * @param request The model building request that holds the parameters, must not be {@code null}.

import org.codehaus.plexus.configuration.PlexusConfiguration;
import org.eclipse.sisu.plexus.CompositeBeanHelper;

/**
 * An enhanced {@link ObjectWithFieldsConverter} leveraging the {@link TypeAwareExpressionEvaluator}
 * interface.
 */
class EnhancedConfigurationConverter extends ObjectWithFieldsConverter {
    protected Object fromExpression(
            final PlexusConfiguration configuration, final ExpressionEvaluator evaluator, final Class<?> type)

import java.io.File
import java.io.FileOutputStream
import java.util.jar.JarFile
import java.util.jar.JarOutputStream


@CacheableTransform
abstract class Minify : TransformAction<Minify.Parameters> {

    interface Parameters : TransformParameters {
        @get:Input
        var keepClassesByArtifact: Map<String, Set<String>>
    }

    @get:PathSensitive(PathSensitivity.NAME_ONLY)
    @get:InputArtifact

 * bookkeeping easier for the caller: releasing the allocation as soon as the terminal stream has
 * been found. But only complete the stream once its data stream has been exhausted.
 */
interface Connection {
  /** Returns the route used by this connection. */
  fun route(): Route

  /**
   * Returns the socket that this connection is using. Returns an

/**
 * @deprecated As of 3.2.2, and there is no direct replacement. This is an internal class which was not marked as such,
 *             but should have been.
 *
 */
@Deprecated
public interface ProjectDependenciesResolver {

    /**
     * Resolves the transitive dependencies of the specified project.
     *
     * @param project         The project whose dependencies should be resolved, must not be {@code null}.

以及如何[使用 `CORSMiddleware` 处理 CORS](../tutorial/cors.md){.internal-link target=_blank}。

本章学习如何使用其它中间件。

## 添加 ASGI 中间件

因为 **FastAPI** 基于 Starlette，且执行 <abbr title="Asynchronous Server Gateway Interface，异步服务器网关界面">ASGI</abbr> 规范，所以可以使用任意 ASGI 中间件。

中间件不必是专为 FastAPI 或 Starlette 定制的，只要遵循 ASGI 规范即可。

总之，ASGI 中间件是类，并把 ASGI 应用作为第一个参数。

因此，有些第三方 ASGI 中间件的文档推荐以如下方式使用中间件：

```Python