}
```

Again, it will convert the data types, validate, document, etc.

## Multiple body params and query { #multiple-body-params-and-query }

Of course, you can also declare additional query parameters whenever you need, additional to any body parameters.

As, by default, singular values are interpreted as query parameters, you don't have to explicitly add a `Query`, you can just do:

```Python
q: Union[str, None] = None

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *

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"License"); you may not use this file except in compliance
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/*
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**Screenshots**
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**Environment (please complete the following information):**
 - OS: [e.g. Windows 10]
 - Version [e.g. 3.5.0]

**Additional context**

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**Environment (please complete the following information):**
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# Расширенное руководство пользователя { #advanced-user-guide }

## Дополнительные возможности { #additional-features }

Основное [Учебник - Руководство пользователя](../tutorial/index.md){.internal-link target=_blank} должно быть достаточно, чтобы познакомить вас со всеми основными функциями **FastAPI**.

В следующих разделах вы увидите другие варианты, конфигурации и дополнительные возможности.

/// tip | Совет