/**
   * A sensible definition of {@link #firstEntry()} in terms of {@code entrySet().iterator()}.
   *
   * <p>If you override {@link #entrySet()}, you may wish to override {@link #firstEntry()} to
   * forward to this implementation.
   */
  protected @Nullable Entry<E> standardFirstEntry() {
    Iterator<Entry<E>> entryIterator = entrySet().iterator();
    if (!entryIterator.hasNext()) {
      return null;
    }

    Iterator<String> iterator = asList("a", "b", "a").iterator();
    Multiset<String> multiset = ImmutableMultiset.copyOf(iterator);
    assertEquals(HashMultiset.create(asList("a", "b", "a")), multiset);
  }

  public void testCopyOf_iteratorContainingNull() {
    Iterator<@Nullable String> iterator =
        Arrays.<@Nullable String>asList("a", null, "b").iterator();
    assertThrows(

package com.google.common.collect;

import static com.google.common.base.Preconditions.checkNotNull;

import com.google.common.annotations.GwtCompatible;
import java.util.Iterator;
import org.jspecify.annotations.Nullable;

/**
 * An iterator that transforms a backing iterator; for internal use. This avoids the object overhead
 * of constructing a {@link com.google.common.base.Function Function} for internal methods.
 *
 * @author Louis Wasserman

      @Override
      SortedMultiset<E> forwardMultiset() {
        return AbstractSortedMultiset.this;
      }

      @Override
      Iterator<Entry<E>> entryIterator() {
        return descendingEntryIterator();
      }

      @Override
      public Iterator<E> iterator() {
        return descendingIterator();
      }
    }
    return new DescendingMultisetImpl();
  }

  /** Support for {@link Iterator#remove()}. */
  SUPPORTS_REMOVE,
  /**
   * Support for {@link ListIterator#add(Object)}; ignored for plain {@link Iterator}
   * implementations.
   */
  SUPPORTS_ADD,
  /**
   * Support for {@link ListIterator#set(Object)}; ignored for plain {@link Iterator}
   * implementations.
   */
  SUPPORTS_SET;

  /**

In this case, the task function will write to a file (simulating sending an email).

And as the write operation doesn't use `async` and `await`, we define the function with normal `def`:

{* ../../docs_src/background_tasks/tutorial001_py310.py hl[6:9] *}

## Add the background task { #add-the-background-task }

Inside of your *path operation function*, pass your task function to the *background tasks* object with the method `.add_task()`:

Swagger UI bunu arka planda sizin için yönetir, ancak bu "redirect" yardımcısına ihtiyaç duyar.

///

### Test etmek için bir *path operation* oluşturun { #create-a-path-operation-to-test-it }

Şimdi her şeyin çalıştığını test edebilmek için bir *path operation* oluşturun:

{* ../../docs_src/custom_docs_ui/tutorial001_py310.py hl[36:38] *}

### Test edin { #test-it }

문서 UI에 표시되는 응답의 설명을 정의하려면 [튜토리얼 - 경로 처리 구성 - 응답 설명](../tutorial/path-operation-configuration.md#response-description) 문서를 읽어보세요.

## 문서화 *경로 처리* 지원 중단하기 - OpenAPI { #documentation-deprecate-a-path-operation-openapi }

*경로 처리*를 지원 중단(deprecate)으로 표시하고, 문서 UI에 보여주려면 [튜토리얼 - 경로 처리 구성 - 지원 중단](../tutorial/path-operation-configuration.md#deprecate-a-path-operation) 문서를 읽어보세요.

## 어떤 데이터든 JSON 호환으로 변환하기 { #convert-any-data-to-json-compatible }

  public void testEntrySet_iteratorRemovePropagates() {
    Iterator<Multiset.Entry<E>> iterator = getMultiset().entrySet().iterator();
    assertTrue(
        "non-empty multiset.entrySet() iterator.hasNext() returned false", iterator.hasNext());
    assertEquals(
        "multiset.entrySet() iterator.next() returned incorrect entry",
        Multisets.immutableEntry(e0(), 1),
        iterator.next());
    assertFalse(

participant dep_func as Dep scope="function"
participant operation as Path Operation

    client ->> dep_req: Start request
    Note over dep_req: Run code up to yield
    dep_req ->> dep_func: Pass dependency
    Note over dep_func: Run code up to yield
    dep_func ->> operation: Run path operation with dependency
    operation ->> dep_func: Return from path operation
    Note over dep_func: Run code after yield