## Eine Instanz erstellen { #create-an-instance }

Wir könnten eine Instanz dieser Klasse erstellen mit:

{* ../../docs_src/dependencies/tutorial011_an_py310.py hl[18] *}

Und auf diese Weise können wir unsere Abhängigkeit „parametrisieren“, die jetzt `"bar"` enthält, als das Attribut `checker.fixed_content`.

## Die Instanz als Abhängigkeit verwenden { #use-the-instance-as-a-dependency }

但我们希望能够把这个固定内容参数化。

## “可调用”的实例 { #a-callable-instance }

在 Python 中，可以让某个类的实例变成“可调用对象”（callable）。

这里指的是类的实例（类本身已经是可调用的），而不是类本身。

为此，声明一个 `__call__` 方法：

{* ../../docs_src/dependencies/tutorial011_an_py310.py hl[12] *}

在这种情况下，**FastAPI** 会使用这个 `__call__` 来检查附加参数和子依赖，并且稍后会调用它，把返回值传递给你的*路径操作函数*中的参数。

## 参数化实例 { #parameterize-the-instance }

现在，我们可以用 `__init__` 声明实例的参数，用来“参数化”这个依赖项：

@GwtIncompatible
public final class Quantiles {
  /**
   * Constructor for a type that is not meant to be instantiated.
   *
   * @deprecated Use the static factory methods of the class. There is no reason to create an
   *     instance of {@link Quantiles}.
   */
  @Deprecated
  public Quantiles() {}

  /** Specifies the computation of a median (i.e. the 1st 2-quantile). */
  public static ScaleAndIndex median() {

	"http://dbflute.org/meta/lastadi10.dtd">
<components namespace="fessCrawler">
	<include path="crawler/container.xml" />

	<component name="mimeTypeHelper"
		class="org.codelibs.fess.crawler.helper.impl.MimeTypeHelperImpl" instance="singleton">
	</component>

	"http://dbflute.org/meta/lastadi10.dtd">
<components namespace="fessCrawler">
	<include path="crawler/container.xml" />

	<component name="sitemapsHelper" class="org.codelibs.fess.crawler.helper.SitemapsHelper"
		instance="singleton">
	</component>

          Class.forName("com.amazon.corretto.crypto.provider.AmazonCorrettoCryptoProvider")

          AmazonCorrettoCryptoProvider.INSTANCE.loadingError == null &&
            AmazonCorrettoCryptoProvider.INSTANCE.runSelfTests() == SelfTestStatus.PASSED
        } catch (e: ClassNotFoundException) {
          false
        }

      val isCorrettoInstalled: Boolean =

    } else {
      return new RegularImmutableSortedSet<>(ImmutableList.of(), comparator);
    }
  }

  /**
   * Returns the empty immutable sorted set.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  @SuppressWarnings("unchecked") // The natural-ordered empty set supports all types.
  public static <E> ImmutableSortedSet<E> of() {

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.squareup.okhttp3</groupId>
  <artifactId>maven-tests</artifactId>
  <version>1.0.0-SNAPSHOT</version>

  <name>maven-tests</name>

func TestObjectNewMultipartUpload(t *testing.T) {
	if runtime.GOOS == globalWindowsOSName {
		t.Skip()
	}
	ExecObjectLayerTest(t, testObjectNewMultipartUpload)
}

// Tests validate creation of new multipart upload instance.
func testObjectNewMultipartUpload(obj ObjectLayer, instanceType string, t TestErrHandler) {
	bucket := "minio-bucket"
	object := "minio-object"
	opts := ObjectOptions{}

    void setUp() {
        buffer = new byte[BUFFER_SIZE];
    }

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create instance with Configuration, hash algorithms and salt")
        void testConstructorWithConfigHashAlgosAndSalt() {
            int[] hashAlgos = { PreauthIntegrityNegotiateContext.HASH_ALGO_SHA512 };