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.

Y esa función `get_openapi()` recibe como parámetros:

* `title`: El título de OpenAPI, mostrado en la documentación.
* `version`: La versión de tu API, por ejemplo `2.5.0`.
* `openapi_version`: La versión de la especificación OpenAPI utilizada. Por defecto, la más reciente: `3.1.0`.
* `summary`: Un breve resumen de la API.

color: $close-color;\n    text-decoration: none;\n  }\n\n  &:not(:disabled):not(.disabled) {\n    @include hover-focus() {\n      opacity: .75;\n    }\n  }\n}\n\n// Additional properties for button version\n// iOS requires the button element instead of an anchor tag.\n// If you want the anchor version, it requires `href=\"#\"`.\n// See https://developer.mozilla.org/en-US/docs/Web/Events/click#Safari_Mobile\n\n// stylelint-disable-next-line selector-no-qualifying-type\nbutton.close {\n  padding: 0;\n...

 * under the License.
 */
package org.apache.maven.project;

import org.eclipse.aether.RepositorySystemSession;

/**
 * Component interface that allows per-project customization of Aether repository system sessions.
 *
 * <strong>Note:</strong> This interface is part of work in progress and can be changed or removed without notice.
 * @since 3.2.4
 */
public interface RepositorySessionDecorator {
    /**

  // The keys of this map are all the active sessions using this graph. Each
  // value records whether the graph has been mutated since the corresponding
  // session has been run (this is detected in RecordMutation function). If the
  // string is empty, no mutation has occurred. Otherwise the string is a
  // description of the mutation suitable for returning to the user.
  //
  // Sessions are added to this map in TF_NewSession, and removed in

```

Pero luego si deseas ejecutar `prisoner-of-azkaban`, necesitarás desinstalar `harry` versión `1` e instalar `harry` versión `3` (o simplemente instalar la versión `3` automáticamente desinstalaría la versión `1`).

<div class="termy">

```console
$ pip install "harry==3"
```

</div>

Y entonces terminarías con `harry` versión `3` instalada en tu entorno global de Python.

--#{$prefix}list-group-active-border-color: var(--#{$prefix}#{$state}-text-emphasis);\n  }\n}\n// scss-docs-end list-group-modifiers\n","// Transparent background and border properties included for button version.\n// iOS requires the button element instead of an anchor tag.\n// If you want the anchor version, it requires `href=\"#\"`.\n// See https://developer.mozilla.org/en-US/docs/Web/Events/click#Safari_Mobile\n\n.btn-close {\n  // scss-docs-start close-css-vars\n  --#{$prefix}btn-close-color: #{$btn-close-color};\n...

)

// From Veeam-SOSAPI_1.0_Document_v1.02d.pdf
// - SOSAPI Protocol Version
// - Model Name of the vendor plus version for statistical analysis.
// - List of Smart Object Storage protocol capabilities supported by the server.
// Currently, there are three capabilities supported:
//   - Capacity Reporting
//   - Backup data locality for upload sessions (Veeam Smart Entity)

--------------------------------------------------------------------------------
https://fess.codelibs.org/

Copyright 2018 CodeLibs Project.

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

/**
 * Runs a MockWebServer on localhost and uses it as the backend to receive an OAuth session.
 *
 * <p>Clients should call {@link #start}, {@link #newAuthorizeUrl} and {@link #close} in that order.
 * Clients may request multiple sessions.
 */
public final class OAuthSessionFactory extends Dispatcher implements Closeable {
  private final SecureRandom secureRandom = new SecureRandom();

  private final SlackApi slackApi;