You import it and create an "instance" the same way you would with the class `FastAPI`:

{* ../../docs_src/bigger_applications/app_an_py39/routers/users.py hl[1,3] title["app/routers/users.py"] *}

### *Path operations* with `APIRouter` { #path-operations-with-apirouter }

And then you use it to declare your *path operations*.

Use it the same way you would use the `FastAPI` class:

import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.exception.IllegalBehaviorStateException;
import org.dbflute.util.DfTypeUtil;

/**
 * @author FreeGen
 */
public class RoleBhv extends BsRoleBhv {
    private String indexName = null;

    @Override
    protected String asEsIndex() {
        if (indexName == null) {

import jakarta.validation.constraints.Size;

/**
 * Form class for creating Kuromoji dictionary entries.
 * Kuromoji is a Japanese morphological analyzer and this form allows
 * administrators to add custom dictionary entries for better Japanese text analysis.
 *
 */
public class CreateForm {

    /**
     * Creates a new CreateForm instance.
     */
    public CreateForm() {

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Signifies that a public API (public class, method or field) is subject to incompatible changes,
 * or even removal, in a future release. An API bearing this annotation is exempt from any
 * compatibility guarantees made by its containing library. Note that the presence of this

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Signifies that a public API (public class, method or field) is subject to incompatible changes,
 * or even removal, in a future release. An API bearing this annotation is exempt from any
 * compatibility guarantees made by its containing library. Note that the presence of this

import org.apache.maven.model.building.ModelProblemCollector;
import org.apache.maven.model.building.ModelProblemCollectorRequest;

/**
 */
@Deprecated
@Named
@Singleton
public class DefaultModelValidator implements ModelValidator {

    @Inject
    private org.apache.maven.model.validation.ModelValidator modelValidator;

    @Override
    public ModelValidationResult validate(Model model) {

// Using star import to workaround https://youtrack.jetbrains.com/issue/KTIJ-24390
import org.gradle.kotlin.dsl.*
import org.gradle.workers.WorkerExecutor
import javax.inject.Inject


@CacheableTask
abstract class IncubatingApiAggregateReportTask : DefaultTask() {

    @get:InputFiles
    @get:PathSensitive(PathSensitivity.RELATIVE)
    abstract val reports: ConfigurableFileCollection

    @get:Input

				return np, grid.NewRemoteErr(err)
			}
			return np, grid.NewRemoteErrString(string(buf))
		}
		if !dryRun {
			globalServiceSignalCh <- signal
		}
	case serviceFreeze:
		freezeServices()
	case serviceUnFreeze:
		unfreezeServices()
	case serviceReloadDynamic:
		objAPI := newObjectLayerFn()
		if objAPI == nil {
			return np, grid.NewRemoteErr(errServerNotInitialized)
		}

import jakarta.validation.constraints.Size;

/**
 * Form class for creating protected words dictionary entries.
 * Protected words are terms that should not be modified or analyzed during
 * text processing, preserving their original form in search indexes.
 *
 */
public class CreateForm {

    /**
     * Creates a new CreateForm instance.
     */
    public CreateForm() {

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

import org.codelibs.core.exception.IORuntimeException;

/**
 * Utility class for {@link OutputStream} operations.
 *
 * @author shot
 */
public abstract class OutputStreamUtil {

    /**
     * Do not instantiate.
     */
    protected OutputStreamUtil() {
    }

    /**
     * Creates a {@link FileOutputStream}.