}
	}
	config.Lock()
	delete(config.Tiers, tier)
	delete(config.drivercache, tier)
	config.Unlock()
	return nil
}

// Verify verifies if tier's config is valid by performing all supported
// operations on the corresponding warmbackend.
func (config *TierConfigMgr) Verify(ctx context.Context, tier string) error {
	d, err := config.getDriver(ctx, tier)
	if err != nil {
		return err
	}

   * while other events occur sequentially; cancels may occur concurrently with other events. For
   * example, thread A may be executing [responseBodyStart] while thread B executes [canceled].
   * Implementations must support such concurrent calls.
   *
   * Note that cancellation is best-effort and that a call may proceed normally after it has been
   * canceled. For example, happy-path events like [requestHeadersStart] and [requestHeadersEnd] may

```

...na:

```Python
        ... "item_price": item.price ...
```

...i zobacz jak edytor kodu automatycznie uzupełni atrybuty i będzie znał ich typy:

![editor support](https://fastapi.tiangolo.com/img/vscode-completion.png)

Dla bardziej kompletnych przykładów posiadających więcej funkcjonalności, zobacz <a href="https://fastapi.tiangolo.com/tutorial/">Tutorial - User Guide</a>.

```

...পরবর্তীতে:

```Python
        ... "item_price": item.price ...
```

...এবং দেখুন কিভাবে আপনার এডিটর উপাদানগুলোকে সয়ংক্রিয়ভাবে-সম্পন্ন করবে এবং তাদের ধরন জানতে পারবে:

![editor support](https://fastapi.tiangolo.com/img/vscode-completion.png)

আরও বৈশিষ্ট্য সম্পন্ন উদাহরণের জন্য, দেখুন <a href="https://fastapi.tiangolo.com/tutorial/">টিউটোরিয়াল - ব্যবহারকারীর গাইড</a>.

	redirectDNS := cfg.cfg.RedirectDNS
	if ingressMode && cfg.cfg.TPROXYRedirection {
		ingressMode = false
		// We could support this, but TPROXYRedirection is deprecated and will be removed soon, so we can just test less.
		log.Warnf("ignoring ingressMode due to TPROXYRedirection being enabled. These are mutually exclusive")
	}

// for pods to use. It requires the path prefix to be defined.
message AllowedHostPath {
  // pathPrefix is the path prefix that the host volume must match.
  // It does not support `*`.
  // Trailing slashes are trimmed when validating the path prefix with a host path.
  //
  // Examples:
  // `/foo` would allow `/foo`, `/foo/` and `/foo/bar`
  // `/foo` would not allow `/food` or `/etc/foo`

    String SUPPORTED_UPLOADED_JS_EXTENTIONS = "supported.uploaded.js.extentions";

    /** The key of the configuration. e.g. css */
    String SUPPORTED_UPLOADED_CSS_EXTENTIONS = "supported.uploaded.css.extentions";

    /** The key of the configuration. e.g. jpg,jpeg,gif,png,swf */
    String SUPPORTED_UPLOADED_MEDIA_EXTENTIONS = "supported.uploaded.media.extentions";

    example: Annotated[
        Optional[Any],
        typing_deprecated(
            "Deprecated in OpenAPI 3.1.0 that now uses JSON Schema 2020-12, "
            "although still supported. Use examples instead."
        ),
    ] = None


# Ref: https://json-schema.org/draft/2020-12/json-schema-core.html#name-json-schema-documents
# A JSON Schema MUST be an object or a boolean.

* PostgreSQL
* MySQL
* SQLite
* Oracle
* Microsoft SQL Server, etc.

Neste exemplo, usaremos **SQLite**, porque ele usa um único arquivo e o Python tem suporte integrado. Assim, você pode copiar este exemplo e executá-lo como está.

Mais tarde, para sua aplicação em produção, você pode querer usar um servidor de banco de dados como o **PostgreSQL**.

/// tip | Dica

```Python hl_lines="6  11  16" title="app/routers/users.py"
{!../../docs_src/bigger_applications/app/routers/users.py!}
```

You can think of `APIRouter` as a "mini `FastAPI`" class.

All the same options are supported.

All the same `parameters`, `responses`, `dependencies`, `tags`, etc.

/// tip

In this example, the variable is called `router`, but you can name it however you want.

///