@JvmName("reifiedTag")
  inline fun <reified T : Any> tag(): T? = tag(T::class)

  /** Returns the tag attached with [type] as a key, or null if no tag is attached with that key. */
  fun <T : Any> tag(type: KClass<T>): T? = type.java.cast(tags[type])

  /**
   * Returns the tag attached with `Object.class` as a key, or null if no tag is attached with
   * that key.
   *

    @Incubating
    static class NewIncubatingBase extends NewSuper {}

    @Incubating
    interface IncubatingInterface {}

    interface InternalInterface {}

    interface StablePublicInterface {}

    CtClass oldBase
    CtClass newBase
    CtClass newSuper
    CtClass newIncubatingBase
    CtClass internalInterface
    CtClass incubatingInterface
    CtClass stablePublicInterface

    Map interfaces

object KotlinMetadataQueries {

    fun isKotlinFileFacadeClass(ctClass: CtClass): Boolean =
        if (Modifier.isPrivate(ctClass.modifiers)) false
        else queryKotlinMetadata(ctClass) { metadata ->
            when (metadata) {
                is KotlinClassMetadata.FileFacade -> true
                else -> false
            }
        }

    fun isKotlinInternal(ctClass: CtClass): Boolean =

    }

    private List<String> filterChangesToReport(CtClass c, Set<CtMethod> methods) {
        return methods.findAll { isFirstPublicClassInHierarchy(it, c) }*.longName.sort()
    }

    private boolean isFirstPublicClassInHierarchy(CtMethod method, CtClass c) {
        List<CtClass> classesContainingMethod = []

        CtClass current = c
        while (current != null) {

### Criando uma classe `Enum`

Importe `Enum` e crie uma sub-classe que herde de `str` e de `Enum`.

Por herdar de `str` a documentação da API vai ser capaz de saber que os valores devem ser do tipo `string` e assim ser capaz de mostrar eles corretamente.

Assim, crie atributos de classe com valores fixos, que serão os valores válidos disponíveis.

import japicmp.filter.ClassFilter
import javassist.CtClass

import java.util.regex.Pattern

/**
 * Matches JVM anonymous classes.
 */
class AnonymousClassesFilter implements ClassFilter {

    private static final Pattern PATTERN = Pattern.compile('.*\\$[0-9]+$')

    @Override
    boolean matches(CtClass ctClass) {
        return ctClass.name.matches(PATTERN)
    }

    }

    private Map<String, CtClass> collectImplementedInterfaces(CtClass c) {
        Map<String, CtClass> result = [:]
        collect(result, c)
        return result
    }

    private void collect(Map<String, CtClass> result, CtClass c) {
        c.interfaces.each { result.put(it.name, it) }

        if (c.superclass != null) {

E uma subclasse de `APIRoute` para usar essa classe de requisição personalizada.

### Criar uma classe `GzipRequest` personalizada

/// tip | Dica

Isso é um exemplo de brincadeira para demonstrar como funciona, se você precisar de suporte para Gzip, você pode usar o [`GzipMiddleware`](../advanced/middleware.md#gzipmiddleware){.internal-link target=_blank} fornecido.

///

        listener.start(String.format("class %s", classMetaData));
        try {
            String rawCommentText = classMetaData.getRawCommentText();
            try {
                return parse(rawCommentText, classMetaData, new NoOpCommentSource(), listener);
            } catch (Exception e) {

* <a href="https://github.com/encode/uvicorn/blob/master/uvicorn/middleware/proxy_headers.py" class="external-link" target="_blank">Uvicorn's `ProxyHeadersMiddleware`</a>
* <a href="https://github.com/florimondmanca/msgpack-asgi" class="external-link" target="_blank">MessagePack</a>