@app.get("/items/")
def read_items(user: CurrentUser):
    ...


@app.post("/items/")
def create_item(user: CurrentUser, item: Item):
    ...


@app.get("/items/{item_id}")
def read_item(user: CurrentUser, item_id: int):
    ...


@app.delete("/items/{item_id}")
def delete_item(user: CurrentUser, item_id: int):
    ...
```

  - A server-side apply request that changes an object which has duplicate items in a keyed list, and modifies the duplicated item removes the duplicates and replaces them with the single item contained in the server-side apply request. ([#121575](https://github.com/kubernetes/kubernetes/pull/121575), [@apelisse](https://github.com/apelisse))

* This PR removes the following metrics: ([#74636](https://github.com/kubernetes/kubernetes/pull/74636), [@logicalhan](https://github.com/logicalhan))
    *   reflector_items_per_list
    *   reflector_items_per_watch
    *   reflector_last_resource_version
    *   reflector_list_duration_seconds
    *   reflector_lists_total
    *   reflector_short_watches_total
    *   reflector_watch_duration_seconds

  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.ListMeta metadata = 1;

  // Items is the list of ConfigMaps.
  repeated ConfigMap items = 2;
}

// ConfigMapNodeConfigSource contains the information to reference a ConfigMap as a config source for the Node.

must either all be present or all be absent. If present, each name
stands for one item (parameter or result) of the specified type and
all non-<a href="#Blank_identifier">blank</a> names in the signature
must be <a href="#Uniqueness_of_identifiers">unique</a>.
If absent, each type stands for one item of that type.
Parameter and result
lists are always parenthesized except that if there is exactly

 - Fix: get attach disk error due to missing item in max count table ([#89768](https://github.com/kubernetes/kubernetes/pull/89768), [@andyzhangx](https://github.com/andyzhangx)) [SIG Cloud Provider and Storage]

* `kubectl get` will by default fetch large lists of resources in chunks of up to 500 items rather than requesting all resources up front from the server. This reduces the perceived latency of managing large clusters since the server returns the first set of results to the client much more quickly.  A new flag `--chunk-size=SIZE` may be used to alter the number of items or disable this feature when `0` is passed.  This is a beta feature. ([#53768](https://github.com/kubernet...

    * remainingItemCount is the number of subsequent items in the list which are not included in this list response. If the list request contained label or field selectors, then the number of remaining items is unknown and the field will be left unset and omitted during serialization. If the list is complete (either because it is not chunking or because this is the last chunk), then there are no more remaining items and this field will be left unset and omitted during serialization....

- CustomResourceDefinition schemas that use `x-kubernetes-list-map-keys` to specify properties that uniquely identify list items must make those properties required or have a default value, to ensure those properties are present for all list items. See https://kubernetes.io/docs/reference/using-api/api-concepts/#merge-strategy for details. ([#88076](https://github.com/kubernetes/kubernetes/pull/88076), [@eloyekunle](https://github.com/eloyekunle))...

- Fixed a bug where using `kubectl patch` with `$deleteFromPrimitiveList` on a nonexistent or empty list would add the item to the list ([#105421](https://github.com/kubernetes/kubernetes/pull/105421), [@brianpursley](https://github.com/brianpursley))