O **FastAPI** sabe o que fazer em cada caso e como reutilizar o mesmo objeto, de forma que todas as tarefas em segundo plano sejam mescladas e executadas em segundo plano posteriormente:

{* ../../docs_src/background_tasks/tutorial002.py hl[13,15,22,25] *}

     * same name.
     */
    public fun addHeader(
      name: String,
      value: Any,
    ): Builder =
      apply {
        headers_.add(name, value.toString())
      }

    /**
     * Adds a new header with the name and value. This may be used to add multiple headers with the
     * same name. Unlike [addHeader] this does not validate the name and

 * contract.
 *
 * <p>The {@code standard} methods and the collection views they return are not guaranteed to be
 * thread-safe, even when all of the methods that they depend on are thread-safe.
 *
 * @author Louis Wasserman
 * @since 12.0
 */
@GwtIncompatible
public abstract class ForwardingNavigableMap<K extends @Nullable Object, V extends @Nullable Object>

 * contract.
 *
 * <p>The {@code standard} methods and the collection views they return are not guaranteed to be
 * thread-safe, even when all of the methods that they depend on are thread-safe.
 *
 * @author Louis Wasserman
 * @since 12.0
 */
@GwtIncompatible
public abstract class ForwardingNavigableMap<K extends @Nullable Object, V extends @Nullable Object>

        String[] languages1 = { "en" };

        SuggestItem item1 = new SuggestItem(text1, readings1, null, 50L, 100L, 2.0f, tags1, roles1, languages1, SuggestItem.Kind.QUERY);

        String[] text2 = { "item1" }; // Same text for same ID
        String[][] readings2 = { { "read2" } };
        String[] tags2 = { "tag2" };
        String[] roles2 = { "role2" };
        String[] languages2 = { "ja" };

						return nil, setupType,
							config.ErrInvalidErasureEndpoints(nil).Msg(fmt.Sprintf("same path '%s' can not be served by different port on same address", endpoint.Path))
					}
					pathIPMap[endpoint.Path] = IPSet.Union(hostIPSet)
				} else {
					pathIPMap[endpoint.Path] = hostIPSet
				}
			}
		}

		// Check whether same path is used for more than 1 local endpoints.
		{

    request body is not used to determine the cache key, so you must manually add cache-relevant
    data to the override URL. For example, you could add a `request-body-sha256` query parameter so
    requests with the same POST data get the same cache entry.

 *  New: `HttpLoggingInterceptor.redactQueryParams()` configures the query parameters to redact
    in logs. For best security, don't put sensitive information in query parameters.

    waiter.join();
    future.set(null);
    poller.join();
  }

  public void testToString_allUnique() throws Exception {
    // Two futures should not have the same toString, to avoid people asserting on it
    assertThat(SettableFuture.create().toString()).isNotEqualTo(SettableFuture.create().toString());
  }

  public void testToString_oom() throws Exception {

      return capture(type);
    }
  }

  /**
   * Wraps around {@code TypeVariable<?>} to ensure that any two type variables are equal as long as
   * they are declared by the same {@link java.lang.reflect.GenericDeclaration} and have the same
   * name, even if their bounds differ.
   *
   * <p>While resolving a type variable from a {@code var -> type} map, we don't care whether the

                query = buf.toString();
                request.setAttribute(key, query);
            }
            return query;
        }).orElse(null);
    }

    /**
     * Encodes a string to URL-safe Base64 format.
     *
     * @param value the string to encode
     * @return Base64 encoded string, or empty string if value is null
     */
    public static String base64(final String value) {