Es bedeutet nicht: „`one_person` ist die **Klasse** genannt `Person`“.

## Pydantic-Modelle { #pydantic-models }

<a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic</a> ist eine Python-Bibliothek für die Validierung von Daten.

Sie deklarieren die „Form“ der Daten als Klassen mit Attributen.

Und jedes Attribut hat einen Typ.

from typing import Union

from fastapi import FastAPI
from fastapi.responses import FileResponse
from pydantic import BaseModel


class Item(BaseModel):
    id: str
    value: str


app = FastAPI()


@app.get(
    "/items/{item_id}",
    response_model=Item,
    responses={
        200: {
            "content": {"image/png": {}},
            "description": "Return the JSON item or an image.",
        }
    },

from typing import Annotated

from fastapi import Body, FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float | None = None


@app.put("/items/{item_id}")
async def update_item(
    *,
    item_id: int,
    item: Annotated[
        Item,
        Body(
            examples=[
                {

from typing import Annotated

from fastapi import Depends, FastAPI

app = FastAPI()


fake_items_db = [{"item_name": "Foo"}, {"item_name": "Bar"}, {"item_name": "Baz"}]


class CommonQueryParams:
    def __init__(self, q: str | None = None, skip: int = 0, limit: int = 100):
        self.q = q
        self.skip = skip
        self.limit = limit


@app.get("/items/")

 */
package org.codelibs.fess.auth.chain;

import org.codelibs.fess.opensearch.user.exentity.User;
import org.codelibs.fess.util.ComponentUtil;

/**
 * An authentication chain for LDAP.
 */
public class LdapChain implements AuthenticationChain {

    /**
     * Default constructor.
     */
    public LdapChain() {
        // do nothing
    }

    @Override
    public void update(final User user) {

 */

package jcifs.smb1.http;

import java.security.Principal;

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletRequestWrapper;

class NtlmHttpServletRequest extends HttpServletRequestWrapper {

    Principal principal;

    NtlmHttpServletRequest(final HttpServletRequest req, final Principal principal) {
        super(req);

 * <p>
 * See <a href="../../../authhandler.html">jCIFS Exceptions and NtlmAuthenticator</a> for more information about <code>SmbAuthException</code>.
 */

public class SmbAuthException extends SmbException {

    SmbAuthException(final int errcode) {
        super(errcode, null);
    }

import org.lastaflute.web.validation.Required;
import org.lastaflute.web.validation.theme.conversion.ValidateTypeFailure;

import jakarta.validation.constraints.Size;

/**
 * The create form for Group.
 *
 */
public class CreateForm {

    /**
     * Creates a new CreateForm instance.
     */
    public CreateForm() {
    }

    /**
     * The CRUD mode for the form.
     */
    @ValidateTypeFailure

 * governing permissions and limitations under the License.
 */
package org.codelibs.core.exception;

/**
 * Exception thrown when an argument is empty.
 *
 * @author higa
 */
public class EmptyArgumentException extends ClIllegalArgumentException {

    private static final long serialVersionUID = 4625805280526951642L;

    /**
     * Creates an {@link EmptyArgumentException}.
     *

import org.opensearch.env.Environment;
import org.opensearch.index.IndexSettings;
import org.opensearch.index.analysis.AbstractCharFilterFactory;
import org.opensearch.index.analysis.NormalizingCharFilterFactory;

public class KuromojiIterationMarkCharFilterFactory extends AbstractCharFilterFactory implements NormalizingCharFilterFactory {

    private final boolean normalizeKanji;
    private final boolean normalizeKana;