# Header 1 { #header-1 }

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## Header 2 { #header-2 }

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### Header 3 { #header-3 }

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## Header 4 { #header-4 }

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#Not a header

# Header 1 { #header-1 }

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## Header 2 { #header-2 }

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### Header 3 { #header-3 }

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# Extra header

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{* ../../docs_src/bigger_applications/app_an_py310/internal/admin.py hl[3] title["app/internal/admin.py"] *}

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{* ../../docs_src/dependencies/tutorial013_an_py310.py ln[30:38] hl[31:33] *}

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If you declare both a return type and a `response_model`, the `response_model` will take priority and be used by FastAPI.

This way you can add correct type annotations to your functions even when you are returning a type different than the response model, to be used by the editor and tools like mypy. And still you can have FastAPI do the data validation, documentation, etc. using the `response_model`.

## Verwendung des `jsonable_encoder` in einer `Response` { #using-the-jsonable-encoder-in-a-response }

Da **FastAPI** keine Änderungen an einer von Ihnen zurückgegebenen `Response` vornimmt, müssen Sie sicherstellen, dass deren Inhalt dafür bereit ist.

## Version 4.11.0

_2023-04-22_

 *  Fix: Don't fail the call when the response code is ‘HTTP 102 Processing’ or
    ‘HTTP 103 Early Hints’.
 *  Fix: Read the response even if writing the request fails. This means you'll get a proper HTTP
    response even if the server rejects your request body.
 *  Fix: Use literal IP addresses directly rather than passing them to `DnsOverHttps`.

{* ../../docs_src/dependencies/tutorial013_an_py310.py ln[19:21] *}

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{* ../../docs_src/bigger_applications/app_an_py310/internal/admin.py hl[3] title["app/internal/admin.py"] *}

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...

 * #whenAllComplete(Iterable)} or {@link #whenAllSucceed(Iterable)} or its overloads.
 *
 * <h3>Cancelling</h3>
 *
 * Any step in a pipeline can be {@linkplain #cancel(boolean) cancelled}, even after another step
 * has been derived, with the same semantics as cancelling a {@link Future}. In addition, a
 * successfully cancelled step will immediately start closing all objects captured for later closing

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package model

import java.util.LinkedList

/**
 * Split a list of elements into nearly even sublist. If an element is too large, largeElementSplitFunction will be used to split the large element into several smaller pieces;
 * if some elements are too small, they will be aggregated by smallElementAggregateFunction.
 *