#### Versiones más recientes de Python { #newer-versions-of-python }

La sintaxis que utiliza `typing` es **compatible** con todas las versiones, desde Python 3.6 hasta las versiones más recientes, incluyendo Python 3.9, Python 3.10, etc.

    /**
     * The created by.
     */
    public String createdBy;

    /**
     * The created time.
     */
    public String createdTime;

    /**
     * The version number.
     */
    public String versionNo;

    /**
     * Clear the pager.
     */
    public void clear() {
        allRecordCount = 0;
        allPageCount = 0;
        existPrePage = false;

    /** The sort order. */
    public String sortOrder;

    /** The creator. */
    public String createdBy;

    /** The creation time. */
    public String createdTime;

    /** The version number. */
    public String versionNo;

    /**
     * Clears all fields.
     */
    public void clear() {
        allRecordCount = 0;
        allPageCount = 0;
        existPrePage = false;
        existNextPage = false;

    /**
     * ID of the role.
     */
    public String id;

    /**
     * Name of the role.
     */
    public String name;

    /**
     * Version number of the role.
     */
    public String versionNo;

    /**
     * Clears the pager's state.
     */
    public void clear() {
        allRecordCount = 0;
        allPageCount = 0;
        existPrePage = false;

    public String createdBy;

    /** The timestamp when this file authentication entry was created. */
    public String createdTime;

    /** The version number for optimistic locking. */
    public String versionNo;

    /**
     * Clears all pagination and search criteria fields, resetting them to their default values.
     */
    public void clear() {
        allRecordCount = 0;

Si tienes una app de FastAPI antigua, podrías estar usando Pydantic versión 1.

FastAPI ha tenido compatibilidad con Pydantic v1 o v2 desde la versión 0.100.0.

Si tenías instalado Pydantic v2, lo usaba. Si en cambio tenías Pydantic v1, usaba ese.

    /** The creator of the label type. */
    public String createdBy;

    /** The created time of the label type. */
    public String createdTime;

    /** The version number of the label type. */
    public String versionNo;

    /**
     * Clears the pager fields.
     */
    public void clear() {
        allRecordCount = 0;
        allPageCount = 0;
        existPrePage = false;

    /** Creator username for search filtering. */
    public String createdBy;

    /** Creation time for search filtering. */
    public String createdTime;

    /** Version number for search filtering. */
    public String versionNo;

    /**
     * Default constructor for BadWordPager.
     */
    public BadWordPager() {
        // Default constructor
    }

    /**

specific language governing permissions and limitations
under the License.
-->

<project>
  <modelVersion>4.0.0</modelVersion>
  <artifactId>foo</artifactId>
  <groupId>foo</groupId>
  <version>99.44</version>
  <packaging>bleh</packaging>
  <dependencies>
    <dependency>
      <artifactId>artifactId</artifactId>
      <groupId>groupId</groupId>
    </dependency>
  </dependencies>

specific language governing permissions and limitations
under the License.
-->

<project>
  <modelVersion>4.0.0</modelVersion>
  <artifactId>foo</artifactId>
  <groupId>foo</groupId>
  <version>99.44</version>
  <packaging>bleh</packaging>
  <build>
    <plugins>
      <plugin>
        <artifactId>maven-it-plugin</artifactId>
      </plugin>
    </plugins>
  </build>