### `OAuth2PasswordRequestForm` { #oauth2passwordrequestform }

Primero, importa `OAuth2PasswordRequestForm`, y úsalo como una dependencia con `Depends` en la *path operation* para `/token`:

{* ../../docs_src/security/tutorial003_an_py310.py hl[4,78] *}

`OAuth2PasswordRequestForm` es una dependencia de clase que declara un body de formulario con:

* El `username`.
* El `password`.

                String artifactId,
                String version,
                String scope,
                String systemPath,
                Exclusion exclusion) {
            Dependency d = new Dependency();
            d.setGroupId(groupId);
            d.setArtifactId(artifactId);
            d.setVersion(version);
            d.setScope(scope);

<project>
  <modelVersion>4.0.0</modelVersion>

  <parent>
    <groupId>lifecycle-participant-reactor-dependency-injection</groupId>
    <artifactId>parent</artifactId>
    <version>1.0</version>
  </parent>

  <artifactId>module-b</artifactId>

    }

    public boolean isResolved() {
        return children != null;
    }

    /**
     * Test whether the node is direct or transitive dependency.
     *
     * @return whether the node is direct or transitive dependency
     */
    public boolean isChildOfRootNode() {
        return parent != null && parent.parent == null;
    }

    public Iterator<ResolutionNode> getChildrenIterator() {

# `Response` class

You can declare a parameter in a *path operation function* or dependency to be of type `Response` and then you can set data for the response like headers or cookies.

You can also use it directly to create an instance of it and return it from your *path operations*.

You can import it directly from `fastapi`:

```python
from fastapi import Response
```

  // It's a constant, and we can't use ImmutableMap here without creating a circular dependency.
  @SuppressWarnings("ConstantCaseForConstants")
  private static final Map<Class<?>, Class<?>> PRIMITIVE_TO_WRAPPER_TYPE;

  /** A map from wrapper types to their corresponding primitive types. */
  // It's a constant, and we can't use ImmutableMap here without creating a circular dependency.
  @SuppressWarnings("ConstantCaseForConstants")

<project>
  <modelVersion>4.0.0</modelVersion>

  <groupId>lifecycle-participant-reactor-dependency-injection</groupId>
  <artifactId>parent</artifactId>
  <version>1.0</version>
  <packaging>pom</packaging>

  <modules>
    <module>module-a</module>
    <module>module-b</module>
  </modules>

                                if (managedVersions.containsKey(childKey)) {
                                    // If this child node is a managed dependency, ensure
                                    // we are using the dependency management version
                                    // of this child if applicable b/c we want to use the

     */
    @Nonnull
    Collection<BuilderProblem> getProblems();

    /**
     * Gets the result of the dependency resolution for the project.
     *
     * @return the result of the dependency resolution for the project
     */
    @Nonnull
    Optional<DependencyResolverResult> getDependencyResolverResult();

          <description>Default dependency information for projects that inherit from this one. The
            dependencies in this section are not immediately resolved. Instead, when a POM derived
            from this one declares a dependency described by a matching groupId and artifactId, the
            version and other values from this section are used for that dependency if they were not
            already specified.</description>