## Check the Docs

You can verify it in the docs UI at `/docs`:

<div class="screenshot">
<img src="/img/tutorial/request-form-models/image01.png">
</div>

## Forbid Extra Form Fields

In some special use cases (probably not very common), you might want to **restrict** the form fields to only those declared in the Pydantic model. And **forbid** any **extra** fields.

The same way, this database wouldn't receive a Pydantic model (an object with attributes), only a `dict`.

You can use `jsonable_encoder` for that.

It receives an object, like a Pydantic model, and returns a JSON compatible version:

{* ../../docs_src/encoder/tutorial001_py310.py hl[4,21] *}

In this example, it would convert the Pydantic model to a `dict`, and the `datetime` to a `str`.

        String artifactId = "maven-model";

        Dependency dep = new Dependency();

        dep.setGroupId( groupId );
        dep.setArtifactId( artifactId );
        dep.setVersion( "2.0-alpha-3" );

        Model model = new Model();

        model.addDependency( dep );

        MavenProject project = new MavenProject( model, repositorySystem );

    <version>4.0.0-alpha-1-SNAPSHOT</version>
  </parent>

  <artifactId>maven-model</artifactId>

  <name>Maven Model</name>
  <description>Model for Maven POM (Project Object Model)</description>

  <dependencies>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-model</artifactId>
      <version>4.0.0-alpha-1-SNAPSHOT</version>
    </dependency>
    <dependency>

import java.util.List;
import java.util.Map;
import java.util.Properties;

import org.apache.maven.model.Activation;
import org.apache.maven.model.Profile;
import org.apache.maven.model.building.ModelProblem;
import org.apache.maven.model.profile.DefaultProfileActivationContext;
import org.apache.maven.model.profile.ProfileSelector;
import org.apache.maven.profiles.activation.ProfileActivationException;

 */
package org.apache.maven.model.composition;

import java.util.List;

import org.apache.maven.api.model.DependencyManagement;
import org.apache.maven.api.model.Model;
import org.apache.maven.model.building.ModelBuildingRequest;
import org.apache.maven.model.building.ModelProblemCollector;

/**
 * Handles the import of dependency management from other models into the target model.
 *

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

import java.util.concurrent.atomic.AtomicReference;

import org.apache.maven.api.model.Dependency;
import org.apache.maven.api.model.Parent;
import org.apache.maven.api.model.Repository;
import org.apache.maven.model.building.ModelSource;

/**
 * Resolves a POM from its coordinates. During the build process, the

              <version>1.2.0</version>
              <velocityBasedir>${project.basedir}/../../src/mdo</velocityBasedir>
              <models>
                <model>src/main/mdo/toolchains.mdo</model>
              </models>
              <templates>
                <template>model.vm</template>
              </templates>
              <params>
                <param>packageModelV4=org.apache.maven.api.toolchain</param>

            @Override
            public Model getRawModel(Path from, String gId, String aId) {
                Model model = findRawModel(from, gId, aId);
                if (model != null) {
                    context.modelByGA.put(new GAKey(gId, aId), new Holder(model));
                    context.modelByPath.put(model.getPomPath(), new Holder(model));
                }
                return model;
            }

            @Override

    override val failsStage: Boolean = true
) : PerformanceTestBuildSpec, PerformanceTestProjectSpec {
    override
    fun asConfigurationId(model: CIBuildModel, bucket: String) =
        "${asConfigurationId(model)}$bucket"

    override
    fun asConfigurationId(model: CIBuildModel) =
        "${model.projectId}_${oldUuid ?: "PerformanceTest$uuid"}"

    override
    fun asName(): String =