// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//

 * {@link UnsupportedOperationException} when they are not implemented. Most implementations should
 * support either all add operations or none of them, all removal operations or none of them, and if
 * and only if all of these are supported, the {@code setCount} methods as well.
 *
 * <p>A multiset uses {@link Object#equals} to determine whether two instances should be considered

## Paramètres optionnels

De la même façon, vous pouvez définir des paramètres de requête comme optionnels, en leur donnant comme valeur par défaut `None` :

{* ../../docs_src/query_params/tutorial002.py hl[9] *}

Ici, le paramètre `q` sera optionnel, et aura `None` comme valeur par défaut.

/// check | "Remarque"

    Our workaround is to tell GWT that util.concurrent and all other packages
    have prod supersource, even if they have none. GWT is happy to ignore us
    when we specify a nonexistent path.

    (I hope that this workaround does not cause its own problems in the future.)
-->
<super-source path="super"/>

<inherits name="com.google.common.annotations.Annotations" />

    strategy:
      fail-fast: false
      matrix:
        include:
        - language: java-kotlin
          build-mode: none # This mode only analyzes Java. Set this to 'autobuild' or 'manual' to analyze Kotlin too.
        - language: javascript-typescript
          build-mode: none

   */
  private void removeNode(Node<K, V> node) {
    if (node.previous != null) {
      node.previous.next = node.next;
    } else { // node was head
      head = node.next;
    }
    if (node.next != null) {
      node.next.previous = node.previous;
    } else { // node was tail
      tail = node.previous;
    }
    if (node.previousSibling == null && node.nextSibling == null) {
      /*

### Node Binaries

filename | sha512 hash
-------- | -----------
[kubernetes-node-linux-amd64.tar.gz](https://dl.k8s.io/v1.18.20/kubernetes-node-linux-amd64.tar.gz) | 9f4d52317e8ceed178c60a75210a5a00f6548d3c6bb41e6adf2a1b0eee2944de4570be08e4da1bfb982983329bc3c1eeb4ff99dda82352cda8fcd9aeada9c70c

func (l EndpointServerPools) GetNodes() (nodes []Node) {
	nodesMap := make(map[string]Node)
	for _, pool := range l {
		for _, ep := range pool.Endpoints {
			node, ok := nodesMap[ep.Host]
			if !ok {
				node.IsLocal = ep.IsLocal
				node.URL = &url.URL{
					Scheme: ep.Scheme,
					Host:   ep.Host,
				}
				node.GridHost = ep.GridHost()
			}
			if !slices.Contains(node.Pools, ep.PoolIdx) {

/// tip

尽可能选择使用 `Annotated` 的版本。

///

```Python hl_lines="19-21"
{!> ../../docs_src/body_multiple_params/tutorial001.py!}
```

////

/// note

请注意，在这种情况下，将从请求体获取的 `item` 是可选的。因为它的默认值为 `None`。

///

## 多个请求体参数

在上面的示例中，*路径操作*将期望一个具有 `Item` 的属性的 JSON 请求体，就像：

```JSON
{
    "name": "Foo",
    "description": "The pretender",
    "price": 42.0,
    "tax": 3.2

まず、もちろん、`Path`と`Query`とリクエストボディのパラメータの宣言は自由に混ぜることができ、 **FastAPI** は何をするべきかを知っています。

また、デフォルトの`None`を設定することで、ボディパラメータをオプションとして宣言することもできます:

```Python hl_lines="19 20 21"
{!../../docs_src/body_multiple_params/tutorial001.py!}
```

/// note | "備考"

この場合、ボディから取得する`item`はオプションであることに注意してください。デフォルト値は`None`です。

///

## 複数のボディパラメータ

上述の例では、*path operations*は`item`の属性を持つ以下のようなJSONボディを期待していました:

```JSON