import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.DocumentUtil;
import org.codelibs.fess.util.FacetResponse;
import org.dbflute.optional.OptionalEntity;
import org.dbflute.optional.OptionalThing;
import org.lastaflute.web.util.LaRequestUtil;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.action.search.SearchResponse;

```Python hl_lines="1  4"
{!../../docs_src/python_types/tutorial009.py!}
```

Usar `Optional[str]` en lugar de solo `str` te permitirá al editor ayudarte a detectar errores donde podrías estar asumiendo que un valor siempre es un `str`, cuando en realidad también podría ser `None`.

# Apache Maven Encrypt Script
#
# Environment Variable Prerequisites
#
#   JAVA_HOME           (Optional) Points to a Java installation.
#   MAVEN_OPTS          (Optional) Java runtime options used when Maven is executed.
#   MAVEN_SKIP_RC       (Optional) Flag to disable loading of mavenrc files.
# -----------------------------------------------------------------------------

# Apache Maven Encrypt Script
#
# Environment Variable Prerequisites
#
#   JAVA_HOME           (Optional) Points to a Java installation.
#   MAVEN_OPTS          (Optional) Java runtime options used when Maven is executed.
#   MAVEN_SKIP_RC       (Optional) Flag to disable loading of mavenrc files.
# -----------------------------------------------------------------------------

  ElementOrder<N> nodeOrder = ElementOrder.insertion();
  ElementOrder<N> incidentEdgeOrder = ElementOrder.unordered();

  Optional<Integer> expectedNodeCount = Optional.absent();

  /**
   * Creates a new instance with the specified edge directionality.
   *
   * @param directed if true, creates an instance for graphs whose edges are each directed; if
   *     false, creates an instance for graphs whose edges are each undirected.
   */

     * @return Java path type associated to the given location
     */
    public static Optional<JavaPathType> valueOf(JavaFileManager.Location location) {
        for (JavaPathType type : JavaPathType.values()) {
            if (location.equals(type.location)) {
                return Optional.of(type);
            }
        }
        return Optional.empty();
    }

    /**

توی پایتون 3.6 و بالاتر (از جمله پایتون 3.10) می‌تونی با وارد کردن و استفاده از `Optional` از ماژول `typing` اینو تعریف کنی.

```Python hl_lines="1  4"
{!../../docs_src/python_types/tutorial009.py!}
```

استفاده از `Optional[str]` به جای فقط `str` به ویرایشگر کمک می‌کنه خطاهایی که ممکنه فکر کنی یه مقدار همیشه `str` هست رو پیدا کنه، در حالی که می‌تونه `None` هم باشه.

```Python hl_lines="1  4"
{!../../docs_src/python_types/tutorial009.py!}
```

O uso de `Optional[str]` em vez de apenas `str` permitirá que o editor o ajude a detectar erros, onde você pode estar assumindo que um valor é sempre um `str`, quando na verdade também pode ser `None`.

 */
package org.apache.maven.api.services;

import java.io.Closeable;
import java.net.URI;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.nio.file.Path;
import java.util.Optional;

import org.apache.maven.api.RemoteRepository;
import org.apache.maven.api.annotations.Consumer;
import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;

/**

            }

            @Nonnull
            @Override
            public Optional<Project> getProject() {
                return Optional.ofNullable(project);
            }

            @Nonnull
            @Override
            public Optional<Artifact> getRootArtifact() {
                return Optional.ofNullable(rootArtifact);
            }

            @Nonnull
            @Override