placeholder: |
        from fastapi import FastAPI

        app = FastAPI()


        @app.get("/")
        def read_root():
            return {"Hello": "World"}
      render: python
    validations:
      required: true
  - type: textarea
    id: description
    attributes:
      label: Description
      description: |
        What is the problem, question, or error?

input.error,input.valid,select.error,select.valid{background-position:right 5px center;background-repeat:no-repeat}input.error,select.error{border-color:#b94a48;background-image:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAARCAYAAAA/mJfHAAAACXBIWXMAAAsTAAALEwEAmpwYAAAYSmlDQ1BQaG90b3Nob3AgSUNDIHByb2ZpbGUAAHjarVllVBV/t94TJ6hDdx26pLu7QboVOHRzODQYoIAICmKggoKCiogKBiklJqKIKKhYhIgoKgaKinI/gP7f9733frhr3d+HWc888+y9n73XrJk18wMQFqDR6XEoB0B8QgrD3daC6uvnTyW9ABSEgAJrQJUWmkw3d3V1gv95IQBfRwEBALivT...

 */
class Http2Reader(
  /** Creates a frame reader with max header table size of 4096. */
  private val source: BufferedSource,
  private val client: Boolean,
) : Closeable {
  private val continuation: ContinuationSource = ContinuationSource(this.source)
  private val hpackReader: Hpack.Reader =
    Hpack.Reader(
      source = continuation,
      headerTableSizeSetting = 4096,
    )

         * The list of facet queries and their counts.
         */
        protected List<Map<String, Object>> facetQuery;

        /**
         * Populates this response with search render data.
         * @param data The search render data to populate from.
         * @return This ApiDocsResponse instance.
         */
        public ApiDocsResponse renderData(final SearchRenderData data) {
            queryId = data.getQueryId();

}

[data-termynal]:after {
    content: 'bash';
    position: absolute;
    color: var(--color-text-subtle);
    top: 5px;
    left: 0;
    width: 100%;
    text-align: center;
}

a[data-terminal-control] {
    text-align: right;
    display: block;
    color: #aebbff;
}

[data-ty] {
    display: block;
    line-height: 2;
}

[data-ty]:before {

<%@page pageEncoding="UTF-8" contentType="text/html; charset=UTF-8"%>
<footer role="contentinfo">
	<div class="container text-center">
		<p class="text-muted">
			<la:message key="labels.footer.copyright" />
		</p>
	</div>

space:nowrap}.text-left{text-align:left!important}.text-right{text-align:right!important}.text-center{text-align:center!important}@media (min-width:576px){.text-sm-left{text-align:left!important}.text-sm-right{text-align:right!important}.text-sm-center{text-align:center!important}}@media (min-width:768px){.text-md-left{text-align:left!important}.text-md-right{text-align:right!important}.text-md-center{text-align:center!important}}@media (min-width:992px){.text-lg-left{text-align:left!important}....

									 placeholder="${ph_confirm_password}" />
						<div class="input-group-append">
							<span class="input-group-text"><em class="fa fa-lock fa-fw"></span>
						</div>
					</div>
					<div class="text-center">
						<la:link href="/"
							styleClass="btn btn-default">
							<em class="fa fa-arrow-circle-left">
							<la:message key="labels.profile.back" />
						</la:link>

/*
 * Copyright 2012-2025 CodeLibs Project and the Others.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

# Body – Felder

So wie Sie zusätzliche Validation und Metadaten in Parametern der **Pfadoperation-Funktion** mittels `Query`, `Path` und `Body` deklarieren, können Sie auch innerhalb von Pydantic-Modellen zusätzliche Validation und Metadaten deklarieren, mittels Pydantics `Field`.

## `Field` importieren

Importieren Sie es zuerst:

{* ../../docs_src/body_fields/tutorial001_an_py310.py hl[4] *}

/// warning | Achtung