```Python hl_lines="7"
    {!> ../../../docs_src/dependencies/tutorial011.py!}
    ```

In this case, **FastAPI** won't ever touch or care about `__init__`, we will use it directly in our code.

## Create an instance

We could create an instance of this class with:

=== "Python 3.9+"

    ```Python hl_lines="18"
    {!> ../../../docs_src/dependencies/tutorial011_an_py39.py!}
    ```

    // Exists to test that our framework doesn't run it:
    @SuppressWarnings("unused")
    @ExampleDerivedFeature.Require({
      ExampleDerivedFeature.DERIVED_FEATURE_1,
      ExampleDerivedFeature.DERIVED_FEATURE_2
    })
    public void testRequiringTwoExplicitDerivedFeatures() throws Exception {
      doNotActuallyRunThis();
    }

    // Exists to test that our framework doesn't run it:

  Four score and seven years ago our fathers brought forth on
this continent, a new nation, conceived in Liberty, and dedicated
to the proposition that all men are created equal.
  Now we are engaged in a great Civil War, testing whether that
nation, or any nation so conceived and so dedicated, can long
endure.
  We are met on a great battle-field of that war.
  We have come to dedicate a portion of that field, as a final

contributors and maintainers pledge to make participation in our project and our
community a harassment-free experience for everyone, regardless of age, body
size, disability, ethnicity, gender identity and expression, level of
experience, nationality, personal appearance, race, religion, or sexual identity
and orientation.

## Our Standards

Examples of behavior that contributes to creating a positive environment include:

flavor.

-   Snapshot API Docs: [guava][guava-snapshot-api-docs]
-   Snapshot API Diffs: [guava][guava-snapshot-api-diffs]

## Learn about Guava

-   Our users' guide, [Guava Explained]
-   [A nice collection](https://www.tfnico.com/presentations/google-guava) of
    other helpful links

## Links

-   [GitHub project](https://github.com/google/guava)

 *
 * <p>TODO(cpovirk): Consider applying this subclass approach to our other types.
 *
 * <p>For {@code ImmutableMultiset} in particular, I ran into a problem with the {@code
 * GwtSerializationDependencies} approach: When autogenerating a serializer for the new class, GWT
 * tries to refer to our dummy serializer for the superclass,

    // Groovy is part of our API
    externalApi(libs.groovy)
    // Required to inject services into tasks and other objects
    externalApi(libs.inject)
    // Moslty used for nullability annotations
    externalApi(libs.jsr305)
    // We use this to annotate type parameters as @Nullable
    externalApi(libs.jetbrainsAnnotations)
    // SLF4J logging is part of our public API
    externalApi(libs.slf4jApi)

#
# setup.python.sh: Install a specific Python version and packages for it.
# Usage: setup.python.sh <pyversion> <requirements.txt>

# Sets up custom apt sources for our TF images.

# Prevent apt install tzinfo from asking our location (assumes UTC)
export DEBIAN_FRONTEND=noninteractive

# Set up shared custom sources
apt-get update
apt-get install -y gnupg ca-certificates

In the example, we add the `classes` task, a lifecycle task to compile all our production code, and the `spotbugsMain` task, which checks our production code.

We also add a description that will show up in the task list that helps distinguish the two check tasks better.

Now, if run './gradlew :app:tasks', we can see that our new `qualityCheck` lifecycle task is available:

[source, text]
----
$ ./gradlew :app:tasks

// whether or not it is supplied by the user. For both purposes, it must be the
// case that hashing a pointer-identical type produces consistent results
// (somewhat obviously).
//
// However, neither of these purposes require that our hash is perfect, and so
// this was not an explicit design goal of the context type. In fact, due to
// concurrent use it is convenient not to guarantee de-duplication.
//