}

	for i, c := range cases {
		var err error
		var record sql.Record
		var result bytes.Buffer

		r, _ := NewReader(io.NopCloser(strings.NewReader(c.content)), &ReaderArgs{
			FileHeaderInfo:             none,
			RecordDelimiter:            c.recordDelimiter,
			FieldDelimiter:             c.fieldDelimiter,
			QuoteCharacter:             defaultQuoteCharacter,
			QuoteEscapeCharacter:       defaultQuoteEscapeCharacter,

* Others...

## Replication - Processes and Memory

With a FastAPI application, using a server program like the `fastapi` command that runs Uvicorn, running it once in **one process** can serve multiple clients concurrently.

But in many cases, you will want to run several worker processes at the same time.

### Multiple Processes - Workers

   */
  open fun isDuplex(): Boolean = commonIsDuplex()

  /**
   * Returns true if this body expects at most one call to [writeTo] and can be transmitted
   * at most once. This is typically used when writing the request body is destructive and it is not
   * possible to recreate the request body after it has been sent.
   *
   * This method returns false unless it is overridden by a subclass.
   *

  // Features

  private final Set<Feature<?>> features = new LinkedHashSet<>();

  /**
   * Configures this builder to produce tests appropriate for the given features. This method may be
   * called more than once to add features in multiple groups.
   */
  @CanIgnoreReturnValue
  public B withFeatures(Feature<?>... features) {
    return withFeatures(asList(features));
  }

  @CanIgnoreReturnValue

Второй аргумент <a href=«https://docs.python.org/3.8/library/os.html#os.getenv» class=«external-link» target=«_blank»>`os.getenv()`</a> - это возвращаемое по умолчанию значение.

Если значение не указано, то по умолчанию оно равно `None`. В данном случае мы указываем `«World»` в качестве значения по умолчанию.
///

Затем можно запустить эту программу на Python:

//// tab | Linux, macOS, Windows Bash

<div class="termy">

```console

     *
     * <p>This file and jar files from "Class-Path" entry in the scanned manifest files will be
     * added to {@code scannedFiles}.
     *
     * <p>A file will be scanned at most once even if specified multiple times by one or multiple
     * jar files' "Class-Path" manifest entries. Particularly, if a jar file from the "Class-Path"

        new boolean[] {false, true, false, false, true, false, true});
  }

  public void testToArray() {
    // need explicit type parameter to avoid javac warning!?
    List<Boolean> none = Arrays.<Boolean>asList();
    assertThat(Booleans.toArray(none)).isEqualTo(EMPTY);

    List<Boolean> one = Arrays.asList(false);
    assertThat(Booleans.toArray(one)).isEqualTo(ARRAY_FALSE);

    boolean[] array = {false, false, true};

    * この`dict`の値は`float`型です。（つまり、各項目の価格）

#### `Optional`

また、`Optional`を使用して、変数が`str`のような型を持つことを宣言することもできますが、それは「オプション」であり、`None`にすることもできます。

```Python hl_lines="1 4"
{!../../docs_src/python_types/tutorial009.py!}
```

ただの`str`の代わりに`Optional[str]`を使用することで、エディタは値が常に`str`であると仮定している場合に実際には`None`である可能性があるエラーを検出するのに役立ちます。

#### ジェネリック型

以下のように角括弧で型パラメータを取る型を:

* `List`
* `Tuple`
* `Set`
* `Dict`

	if cfg == nil {
		cfg = &Config{}
	}

	configurator := &IptablesConfigurator{
		ext:    hostDeps,
		nlDeps: nlDeps,
		cfg:    cfg,
	}

	// By detecting iptables versions *here* once-for-all we are
	// committing to using the same binary/variant (legacy or nft)
	// within all pods as we do on the host.
	//
	// This should be fine, as the host binaries are all we have to work with here anyway,

  // +optional
  repeated AllowedCSIDriver allowedCSIDrivers = 23;

  // allowedUnsafeSysctls is a list of explicitly allowed unsafe sysctls, defaults to none.
  // Each entry is either a plain sysctl name or ends in "*" in which case it is considered
  // as a prefix of allowed sysctls. Single * means all unsafe sysctls are allowed.