Escribes Python estándar con tipos:

```Python
from datetime import date

from pydantic import BaseModel

# Declara una variable como un str
# y obtiene soporte del editor dentro de la función
def main(user_id: str):
    return user_id


# Un modelo de Pydantic
class User(BaseModel):

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.api.services.xml;

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.services.MavenException;

/**
 * An exception thrown while writing an XML file.
 *
 * @since 4.0.0
 */
@Experimental

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.pager;

import java.io.Serializable;
import java.util.List;

import org.codelibs.fess.util.ComponentUtil;

/**
 * Pager for managing synonym pagination.
 * This class handles the state and logic for paginating through a list of synonyms,

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package jcifs.internal.smb1.com;

import jcifs.Configuration;
import jcifs.internal.smb1.ServerMessageBlock;
import jcifs.internal.util.SMBUtil;

/**
 * SMB1 COM_WRITE command implementation.
 *
 * This command writes data to an open file on the server.

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.api;

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Immutable;
import org.apache.maven.api.annotations.Nonnull;

/**
 * A Maven artifact is a file, typically a JAR, that is produced and used by Maven projects.

En Pydantic v1 venía incluido con el paquete principal. Ahora se distribuye como este paquete independiente para que puedas elegir si instalarlo o no si no necesitas esa funcionalidad.

///

### Crear el objeto `Settings`

Importa `BaseSettings` de Pydantic y crea una sub-clase, muy similar a un modelo de Pydantic.

De la misma forma que con los modelos de Pydantic, declaras atributos de clase con anotaciones de tipos, y posiblemente, valores por defecto.

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.admin.searchlist;

import org.lastaflute.web.validation.Required;

import jakarta.validation.constraints.Size;

/**
 * Form class for deleting documents from search results in the admin interface.
 * Contains query and document ID fields for targeted document deletion.

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.opensearch.log.allcommon;

import org.dbflute.cbean.sqlclause.AbstractSqlClause;
import org.dbflute.dbway.DBWay;

/**
 * @author ESFlute (using FreeGen)
 */
public class EsSqlClause extends AbstractSqlClause {

    private static final long serialVersionUID = 1L;

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.repository.metadata;

import java.util.List;

import org.apache.maven.artifact.repository.ArtifactRepository;

@Deprecated
public class MetadataResolutionRequest {
    protected ArtifactMetadata query;
    protected ArtifactRepository localRepository;

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package jcifs.smb1.smb1;

import java.io.IOException;
import java.io.OutputStream;
import java.net.MalformedURLException;
import java.net.UnknownHostException;

import jcifs.smb1.util.LogStream;

/**
 * This <code>OutputStream</code> can write bytes to a file on an SMB file server.
 */