```Python hl_lines="16"
{!../../docs_src/body/tutorial004.py!}
```

関数パラメータは以下の様に認識されます:

* パラメータが**パス**で宣言されている場合は、優先的にパスパラメータとして扱われます。
* パラメータが**単数型** (`int`、`float`、`str`、`bool` など)の場合は**クエリ**パラメータとして解釈されます。
* パラメータが **Pydantic モデル**型で宣言された場合、リクエスト**ボディ**として解釈されます。

/// note | "備考"

FastAPIは、`= None`があるおかげで、`q`がオプショナルだとわかります。

## OpenAPI-Client-Generatoren

Es gibt viele Tools zum Generieren von Clients aus **OpenAPI**.

Ein gängiges Tool ist <a href="https://openapi-generator.tech/" class="external-link" target="_blank">OpenAPI Generator</a>.

	}
}

// Tests check format xl value.
func TestCheckFormatErasureValue(t *testing.T) {
	testCases := []struct {
		format  *formatErasureV3
		success bool
	}{
		// Invalid Erasure format version "2".
		{
			&formatErasureV3{
				formatMetaV1: formatMetaV1{
					Version: "2",
					Format:  "Erasure",
				},
				Erasure: struct {

This can help ensure that clients do not hold onto pooled connections for too long.
This is not strictly required; Ztunnel clients have both keepalives (which will start to fail once the other end is shut down) and pool idle timeouts (which will close the connection when it has had no activity for some period; because the backend is gone, there will be no activity).

	if srcBucket == dstBucket {
		return false
	}
	return isRemoteCallRequired(ctx, dstBucket, objAPI)
}

// Check if the bucket is on a remote site, this code only gets executed when federation is enabled.
func isRemoteCallRequired(ctx context.Context, bucket string, objAPI ObjectLayer) bool {
	if globalDNSConfig == nil {
		return false
	}

# Bigger Applications - Multiple Files

If you are building an application or a web API, it's rarely the case that you can put everything in a single file.

**FastAPI** provides a convenience tool to structure your application while keeping all the flexibility.

/// info

If you come from Flask, this would be the equivalent of Flask's Blueprints.

///

## An example file structure

Let's say you have a file structure like this:

```

        }
      } finally {
        // Important to null this out here - if we did *not* execute inline, we might still
        // run() on the same thread that called execute() - such as in a thread pool, and think
        // that it was happening inline. As a side benefit, avoids holding on to the Thread object
        // longer than necessary.
        submitting = null;
      }
    }

  // is not namespaced or the request targets all namespaces).
  // If this field is omitted or false then the `namespaces` field
  // must contain a non-empty list.
  // +optional
  optional bool clusterScope = 4;

  // `namespaces` is a list of target namespaces that restricts
  // matches.  A request that specifies a target namespace matches
  // only if either (a) this list contains that target namespace or

	}
	delay := job.KeyRotate.Flags.Retry.Delay
	if delay <= 0 {
		delay = batchKeyRotateJobDefaultRetryDelay
	}

	rnd := rand.New(rand.NewSource(time.Now().UnixNano()))

	selectObj := func(info FileInfo) (ok bool) {
		if r.Flags.Filter.OlderThan > 0 && time.Since(info.ModTime) < r.Flags.Filter.OlderThan {
			// skip all objects that are newer than specified older duration
			return false
		}

              </executions>
            </plugin>
          </plugins>
      </build>
    </profile>
    <profile>
      <!--
          Passes JDK 11-12-specific `no-module-directories` flag to Javadoc tool,
          which is required to make symbol search work correctly in the generated
          pages.

          This flag does not exist on 9-10 and 13+ (https://bugs.openjdk.java.net/browse/JDK-8215582).