+ "-Dclassifier=aClassifier -Dpackaging=jar -Dfile=/path/to/file" + LS + LS
                + "  Alternatively, if you host your own repository you can deploy the file there: " + LS
                + "      mvn deploy:deploy-file -DgroupId=aGroupId -DartifactId=anArtifactId"
                + " -Dversion=aVersion -Dclassifier=aClassifier -Dpackaging=jar -Dfile=/path/to/file"

            public static final String PROXY_HOST = HcHttpClient.PROXY_HOST_PROPERTY;
            public static final String USER_AGENT = HcHttpClient.USER_AGENT_PROPERTY;
        }

        // xpath.*
        public static class XPath {
            public static final String DEFAULT_LANG = "default.lang";
            public static final String DEFAULT_CONTENT = "default.content";

Y podemos agregar una lista de `dependencies` que se añadirá a todas las *path operations* en el router y se ejecutarán/solucionarán por cada request que les haga.

/// tip | Consejo

    constructed = false // The enclosed object written in block() is not constructed.
    path += name
    try {
      block(content)
      constructedBit = if (constructed) 0b0010_0000 else 0
      constructed = true // The enclosing object is constructed.
    } finally {
      stack.removeAt(stack.size - 1)
      path.removeAt(path.size - 1)
    }

    val sink = sink()

   */
  @Test
  fun literalHeaderFieldWithoutIndexingIndexedName() {
    val headerBlock = headerEntries(":path", "/sample/path")
    bytesIn.writeByte(0x04) // == Literal not indexed ==
    // Indexed name (idx = 4) -> :path
    bytesIn.writeByte(0x0c) // Literal value (len = 12)
    bytesIn.writeUtf8("/sample/path")
    hpackWriter!!.writeHeaders(headerBlock)
    assertThat(bytesOut).isEqualTo(bytesIn)

    /**
     * Constructs a new Kuromoji file.
     *
     * @param id The ID of the dictionary file.
     * @param path The path of the dictionary file.
     * @param timestamp The timestamp of the dictionary file.
     */
    public KuromojiFile(final String id, final String path, final Date timestamp) {
        super(id, path, timestamp);
    }

    @Override
    public String getType() {
        return KUROMOJI;
    }

        }

        @Override
        public void forEach(final ResourceHandler handler) {
            ResourceTraversalUtil.forEach(jarFile, (ResourceHandler) (path, is) -> {
                if (rootDir == null || path.startsWith(rootDir)) {
                    handler.processResource(path, is);
                }
            });
        }

        @Override
        public void close() {
            JarFileUtil.close(jarFile);

        Response response = checkMethodBase(body).get(getApiPath() + "/" + path);
        // logger.debug(response.asString());
        return response;
    }

    protected Response checkPostMethod(final Map<String, Object> body, final String path) {
        Response response = checkMethodBase(body).post(getApiPath() + "/" + path);
        // logger.debug(response.asString());

        File file = new File(remoteRepo.getBasedir(), path);

        assertFalse(file.exists(), "Remote artifact " + file + " should not be present.");
    }

    protected void assertLocalArtifactNotPresent(Artifact artifact) throws Exception {
        ArtifactRepository localRepo = localRepository();

        String path = localRepo.pathOf(artifact);

{* ../../docs_src/openapi_callbacks/tutorial001.py hl[3,25] *}

### Create the callback *path operation* { #create-the-callback-path-operation }

To create the callback *path operation* use the same `APIRouter` you created above.

It should look just like a normal FastAPI *path operation*:

* It should probably have a declaration of the body it should receive, e.g. `body: InvoiceEvent`.