Extra keys passed to `Field` will also be present in the resulting OpenAPI schema for your application.
As these keys may not necessarily be part of the OpenAPI specification, some OpenAPI tools, for example [the OpenAPI validator](https://validator.swagger.io/), may not work with your generated schema.

///

## Recap { #recap }

You can use Pydantic's `Field` to declare extra validations and metadata for model attributes.

import com.vanniktech.maven.publish.KotlinJvm
import org.jetbrains.kotlin.gradle.dsl.kotlinExtension

plugins {
  kotlin("jvm")
  id("org.jetbrains.dokka")
  id("com.vanniktech.maven.publish.base")
  id("binary-compatibility-validator")
}

project.applyJavaModules("mockwebserver3")

dependencies {
  "friendsApi"(projects.okhttp)

  testImplementation(projects.okhttpTestingSupport)
  testImplementation(projects.okhttpTls)

  @CanIgnoreReturnValue
  @VisibleForTesting
  @ParametricNullness
  static <V extends @Nullable Object, X extends Exception> V getChecked(
      GetCheckedTypeValidator validator, Future<V> future, Class<X> exceptionClass) throws X {
    validator.validateClass(exceptionClass);
    try {
      return future.get();
    } catch (InterruptedException e) {
      currentThread().interrupt();
      throw newWithCause(exceptionClass, e);

import com.vanniktech.maven.publish.JavadocJar
import com.vanniktech.maven.publish.KotlinJvm

plugins {
  kotlin("jvm")
  id("org.jetbrains.dokka")
  id("com.vanniktech.maven.publish.base")
  id("binary-compatibility-validator")
}

project.applyOsgi(
  "Export-Package: okhttp3.zstd",
  "Automatic-Module-Name: okhttp3.zstd",
  "Bundle-SymbolicName: com.squareup.okhttp3.zstd"
)

dependencies {
  "friendsApi"(projects.okhttp)

- github.com/go-openapi/spec: [v0.19.5](https://github.com/go-openapi/spec/tree/v0.19.5)
- github.com/go-openapi/strfmt: [v0.19.5](https://github.com/go-openapi/strfmt/tree/v0.19.5)
- github.com/go-openapi/validate: [v0.19.8](https://github.com/go-openapi/validate/tree/v0.19.8)
- github.com/gobuffalo/here: [v0.6.0](https://github.com/gobuffalo/here/tree/v0.6.0)
- github.com/hpcloud/tail: [v1.0.0](https://github.com/hpcloud/tail/tree/v1.0.0)

 */
package jcifs.internal.smb2.ioctl;

import jcifs.Decodable;
import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 Validate Negotiate Info response data structure. This structure contains the server's
 * validation of the originally negotiated SMB2 dialect.
 *
 * @author mbechler
 *
 */

    else:
        authenticate_value = "Bearer"
    credentials_exception = HTTPException(
        status_code=status.HTTP_401_UNAUTHORIZED,
        detail="Could not validate credentials",
        headers={"WWW-Authenticate": authenticate_value},
    )
    try:
        payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
        username = payload.get("sub")

    else:
        authenticate_value = "Bearer"
    credentials_exception = HTTPException(
        status_code=status.HTTP_401_UNAUTHORIZED,
        detail="Could not validate credentials",
        headers={"WWW-Authenticate": authenticate_value},
    )
    try:
        payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
        username = payload.get("sub")

        context.ciInfo = detectCI(context);

        // only if not failed so far; otherwise we may have no options to validate
        if (!context.parsingFailed) {
            validate(context);
        }

        return getInvokerRequest(context);
    }

    protected void validate(LocalContext context) {
        Options options = context.options;

        options.failOnSeverity().ifPresent(severity -> {

    @SuppressWarnings("unchecked")
    /**
     * Creates a validator instance for form validation.
     * This method uses the system helper to create a validator with Fess-specific messages.
     *
     * @return a new action validator instance
     */
    @Override
    public ActionValidator<FessMessages> createValidator() {