Here are some examples of when that could make sense:

#### A Simple App { #a-simple-app }

You could want a process manager in the container if your application is **simple enough** that can run it on a **single server**, not a cluster.

#### Docker Compose { #docker-compose }

        testUser.setRoleNames(new String[] {});
        assertFalse(fessUserBean.hasRole("admin"));

        // Test with single role - matching
        testUser.setRoleNames(new String[] { "admin" });
        assertTrue(fessUserBean.hasRole("admin"));

        // Test with single role - not matching
        assertFalse(fessUserBean.hasRole("user"));

        // Test with multiple roles

<div class="termy">

```console
$ pip install sqlmodel
---> 100%
```

</div>

## Create the App with a Single Model { #create-the-app-with-a-single-model }

We'll create the simplest first version of the app with a single **SQLModel** model first.

Later we'll improve it increasing security and versatility with **multiple models** below. 🤓

### Create Models { #create-models }

    }

    @Test
    public void test_isFirstWordMatching_singleHiraganaChar() {
        request.setMatchWordFirst(true);
        // Single hiragana character should not match first
        boolean result = request.testIsFirstWordMatching(true, false, "あtest", "あ");
        assertFalse("Single hiragana char query should not match first", result);
    }

    @Test
    public void test_isFirstWordMatching_singleNonHiraganaChar() {

                Read more about it in the
                [FastAPI docs for Simple OAuth2 with Password and Bearer](https://fastapi.tiangolo.com/tutorial/security/simple-oauth2/).
                """
            ),
        ],
        scope: Annotated[
            str,
            Form(),
            Doc(
                """
                A single string with actually several scopes separated by spaces. Each

/// info

`Body` also has all the same extra validation and metadata parameters as `Query`, `Path` and others you will see later.

///

## Embed a single body parameter { #embed-a-single-body-parameter }

Let's say you only have a single `item` body parameter from a Pydantic model `Item`.

By default, **FastAPI** will then expect its body directly.

But in most cases, you will want to perform these steps only **once**.

So, you will want to have a **single process** to perform those **previous steps**, before starting the application.

* **Harder for non-native speakers**: Contributors and users for whom English is a second language benefit from a single, consistent convention

While both American and British English are valid, establishing a single standard improves consistency, readability, and maintainability of the codebase.

## Decision

            'Whitelist' validation step. The parameter field will be the single one
            allowed by the alias or set of aliases defined.
            """
        ),
    ] = None,
    serialization_alias: Annotated[
        str | None,
        Doc(
            """
            'Blacklist' validation step. The vanilla parameter field will be the
            single one of the alias' or set of aliases' fields and all the other

    }

    @Test
    public void test_getInputsValue_withSingleInput() {
        // Test with single input
        String[] inputs = { "single" };
        CharMappingItem item = new CharMappingItem(1L, inputs, "output");

        assertEquals("single", item.getInputsValue());
    }

    @Test
    public void test_getInputsValue_withNullInputs() {