But FastAPI also supports using [`dataclasses`](https://docs.python.org/3/library/dataclasses.html) the same way:

{* ../../docs_src/dataclasses_/tutorial001_py310.py hl[1,6:11,18:19] *}

This is still supported thanks to **Pydantic**, as it has [internal support for `dataclasses`](https://docs.pydantic.dev/latest/concepts/dataclasses/#use-of-stdlib-dataclasses-with-basemodel).

        if (contextHandle == null) {
            contextHandle = new byte[20];
        }
        buf.readOctetArray(contextHandle, 0, 20);
    }

    /**
     * Checks if the context handle has been invalidated (all zeros).
     * A successful unregistration typically results in a zeroed context handle.
     *
     * @return true if the context handle has been invalidated
     */

Check this function, it already has type hints:

{* ../../docs_src/python_types/tutorial003_py310.py hl[1] *}

Because the editor knows the types of the variables, you don't only get completion, you also get error checks:

<img src="/img/python-types/image04.png">

Now you know that you have to fix it, convert `age` to a string with `str(age)`:

{* ../../docs_src/python_types/tutorial004_py310.py hl[2] *}

 * Implementations of this interface handle specific types of web API requests
 * by matching incoming requests and processing them accordingly.
 */
public interface WebApiManager {

    /**
     * Checks if the request matches this API manager.
     * @param request The HTTP servlet request.
     * @return True if the request matches, false otherwise.
     */
    boolean matches(HttpServletRequest request);

    /**

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package target

import (
	"database/sql"
	"slices"
	"testing"
)

// TestPostgreSQLRegistration checks if postgres driver
// is registered and fails otherwise.
func TestPostgreSQLRegistration(t *testing.T) {
	var found bool
	if slices.Contains(sql.Drivers(), "postgres") {
		found = true
	}
	if !found {

        }
      }

      /** Checks if the state is {@link #COMPLETED}, {@link #CANCELLED}, or {@link #INTERRUPTED}. */
      boolean isDone() {
        return (getState() & (COMPLETED | CANCELLED | INTERRUPTED)) != 0;
      }

      /** Checks if the state is {@link #CANCELLED} or {@link #INTERRUPTED}. */
      boolean isCancelled() {

     */
    @Override
    public int getFileIndex() {
        return 0;
    }

    @Override
    public int getType() {
        /*
         * 0x80000000 means hidden but SmbFile.isHidden() checks for $ at end
         */
        switch (this.type & 0xFFFF) {
        case 1:
            return SmbConstants.TYPE_PRINTER;
        case 3:
            return SmbConstants.TYPE_NAMED_PIPE;
        }

            throws ArtifactMetadataRetrievalException;

    /**
     * Get a list of available versions for an artifact in the remote deployment repository. This ignores any update
     * policy checks and mirrors and always retrieves the latest information from the given repository.
     *
     * @param artifact artifact we are interested in. Only <code>groupid</code> and <code>artifactId</code> are

     * during model building, based on the POM schema version.
     * <p>
     * The validation levels are cumulative, with higher versions including all validations
     * from lower versions plus additional checks specific to that version.
     */
    enum Version {
        /**
         * Base validation level that applies to all POM versions.
         * Includes fundamental structural validations.
         */
        BASE,

    /**
     * Gets the URL where the crawling error occurred.
     *
     * @return the URL associated with this exception
     */
    public String getUrl() {
        return url;
    }

    /**
     * Checks whether the crawling process should be aborted due to this exception.
     *
     * @return true if the crawling should be aborted, false otherwise
     */
    public boolean aborted() {
        return abort;
    }