* under the License.
 */
package org.apache.maven.repository.legacy;

import javax.inject.Inject;

import java.io.File;
import java.util.Arrays;

import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.repository.Authentication;
import org.apache.maven.settings.Server;
import org.codehaus.plexus.testing.PlexusTest;
import org.junit.jupiter.api.Test;

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.api;

import java.util.Optional;

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;

/**
 * Event sent by maven during various phases of the build process.
 * Such events can be listened to using {@link Listener}s objects

specific language governing permissions and limitations
under the License.
-->

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <parent>
    <groupId>inheritance</groupId>
    <artifactId>parent</artifactId>

 * under the License.
 */
package org.apache.maven.model.io;

import javax.inject.Named;
import javax.inject.Singleton;

import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.Map;
import java.util.Objects;

import org.apache.maven.model.Model;
import org.apache.maven.model.io.xpp3.MavenXpp3Writer;

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.model.root;

import java.nio.file.Path;

import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.annotations.Nullable;

/**
 * Interface used to locate the root directory for a given project.
 *

 * under the License.
 */
package org.apache.maven.model.io.xpp3;

import javax.xml.stream.XMLStreamException;

import java.io.IOException;
import java.io.OutputStream;
import java.io.Writer;

import org.apache.maven.model.InputLocation;
import org.apache.maven.model.Model;
import org.apache.maven.model.v4.MavenStaxWriter;

/**
 * @deprecated Use MavenStaxWriter instead
 */

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.project.inheritance.t06;

import java.io.File;
import java.util.Iterator;
import java.util.Set;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.project.MavenProject;
import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
import org.junit.jupiter.api.Test;

specific language governing permissions and limitations
under the License.
-->

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>inheritance</groupId>
  <artifactId>parent</artifactId>

In fact, in some cases, it will even have **two JSON Schemas** in OpenAPI for the same Pydantic model, for input and output, depending on if they have **default values**.

Let's see how that works and how to change it if you need to do that.

## Pydantic Models for Input and Output { #pydantic-models-for-input-and-output }

Let's say you have a Pydantic model with default values, like this one:

      <artifactId>maven-api-annotations</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-model</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-model</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-artifact</artifactId>
    </dependency>