This means entire plugins can be enabled and disabled without having to manually edit individual extension point settings.
These extension points can now be abstracted away due to their irrelevance for most users.

### CSI Migration updates

**FastAPI** provides several tools to help you deal with **Security** easily, rapidly, in a standard way, without having to study and learn all the security specifications.

But first, let's check some small concepts.

## In a hurry? { #in-a-hurry }

///

/// tip

Here we reuse the same Pydantic model.

But the same way, we could have validated it in some other way.

# Body - Fields { #body-fields }

The same way you can declare additional validation and metadata in *path operation function* parameters with `Query`, `Path` and `Body`, you can declare validation and metadata inside of Pydantic models using Pydantic's `Field`.

## Import `Field` { #import-field }

First, you have to import it:

{* ../../docs_src/body_fields/tutorial001_an_py310.py hl[4] *}


/// warning

# CMD ["fastapi", "run", "app/main.py", "--port", "80", "--proxy-headers"]
```

</details>

## What is a Container { #what-is-a-container }

Containers (mainly Linux containers) are a very **lightweight** way to package applications including all their dependencies and necessary files while keeping them isolated from other containers (other applications or components) in the same system.

tB,KAAOkC,EAC5CmrB,EAAW5L,EAASzd,IAAKspB,EAAYzF,GAAiB,EAEjDwF,EAQL5L,EAASJ,IAAKiM,EAAYzF,EAAcwF,IAPnCztB,EAASutB,aACbntB,KAAK4f,oBAAqBiI,EAAcqF,GAExChrB,EAAI0d,oBAAqBje,EAAMurB,GAAoB,GAEpDzL,EAASlF,OAAQ+Q,EAAYzF,QAgBjC5kB,GAAOsB,KAAM,CACZgpB,WAAY,YACZC,WAAY,WACZC,aAAc,cACdC,aAAc,cACZ,SAAUC,EAAMlE,GAClBxmB,GAAOskB,MAAMxJ,QAAS4P,GAAS,CAC9B9F,aAAc4B,EACdT,SAAUS,EAEVZ,OAAQ,SAAUtB,GACjB,IAAInjB,EAEHwpB,EAAUrG,EAAMyD,cAChBzC,EAAYhB,EAAMgB,UASnB,OALMqF,IAAaA,IANT5tB,MAMgCiD,GAAOwF,SANvCzI,KAMyD4tB,MACl...

   * <p>If {@code node} is removed from the network after this method is called, the {@code Set}
   * {@code view} returned by this method will be invalidated, and will throw {@code
   * IllegalStateException} if it is accessed in any way, with the following exceptions:
   *
   * <ul>
   *   <li>{@code view.equals(view)} evaluates to {@code true} (but any other {@code equals()}
   *       expression involving {@code view} will throw)

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# Response Model - Return Type { #response-model-return-type }

You can declare the type used for the response by annotating the *path operation function* **return type**.

You can use **type annotations** the same way you would for input data in function **parameters**, you can use Pydantic models, lists, dictionaries, scalar values like integers, booleans, etc.

{* ../../docs_src/response_model/tutorial001_01_py310.py hl[16,21] *}

# About HTTPS { #about-https }

It is easy to assume that HTTPS is something that is just "enabled" or not.

But it is way more complex than that.

/// tip

If you are in a hurry or don't care, continue with the next sections for step by step instructions to set everything up with different techniques.

///