[App Configuration] - Head request support

sdk/appconfiguration/azure-appconfiguration/CHANGELOG.md

@@ -4,6 +4,8 @@
 
 ### Features Added
 
+- Added `check_configuration_settings()` method to efficiently check for configuration changes using HEAD requests, returning only headers (ETags) without response bodies.
+
 ### Breaking Changes
 
 ### Bugs Fixed

sdk/appconfiguration/azure-appconfiguration/assets.json

@@ -2,5 +2,5 @@
   "AssetsRepo": "Azure/azure-sdk-assets",
   "AssetsRepoPrefixPath": "python",
   "TagPrefix": "python/appconfiguration/azure-appconfiguration",
-  "Tag": "python/appconfiguration/azure-appconfiguration_64742b5702"
+  "Tag": "python/appconfiguration/azure-appconfiguration_ea09ae1741"
 }

sdk/appconfiguration/azure-appconfiguration/azure/appconfiguration/_azure_appconfiguration_client.py

@@ -258,6 +258,65 @@ def list_configuration_settings(self, *args: Optional[str], **kwargs: Any) -> It
             page_iterator_class=ConfigurationSettingPropertiesPaged,
         )
 
+    @distributed_trace
+    def check_configuration_settings(
+        self,
+        *,
+        key_filter: Optional[str] = None,
+        label_filter: Optional[str] = None,
+        tags_filter: Optional[List[str]] = None,
+        accept_datetime: Optional[Union[datetime, str]] = None,
+        fields: Optional[List[Union[str, ConfigurationSettingFields]]] = None,
+        **kwargs: Any,
+    ) -> ConfigurationSettingPaged:
+        """Check configuration settings using a HEAD request, returning only headers without the
+        response body. This is useful for efficiently checking if settings have changed by comparing ETags.
+
+        :keyword key_filter: Filter results based on their keys. '*' can be used as wildcard in the beginning or end
+            of the filter.
+        :paramtype key_filter: str or None
+        :keyword label_filter: Filter results based on their label. '*' can be used as wildcard in the beginning or end
+            of the filter.
+        :paramtype label_filter: str or None
+        :keyword tags_filter: Filter results based on their tags.
+        :paramtype tags_filter: list[str] or None
+        :keyword accept_datetime: Retrieve ConfigurationSetting that existed at this datetime
+        :paramtype accept_datetime: ~datetime.datetime or str or None
+        :keyword fields: Specify which fields to include in the results. If not specified, will include all fields.
+            Available fields see :class:`~azure.appconfiguration.ConfigurationSettingFields`.
+        :paramtype fields: list[str] or list[~azure.appconfiguration.ConfigurationSettingFields] or None
+        :return: A pager intended for :meth:`by_page` iteration to inspect page headers (for example, ``etag``)
+            and detect changed pages. This operation issues HEAD requests and does not return full
+            :class:`~azure.appconfiguration.ConfigurationSetting` bodies when iterated item by item.
+        :rtype: ~azure.appconfiguration.ConfigurationSettingPaged
+        :raises: :class:`~azure.core.exceptions.HttpResponseError`, \
+            :class:`~azure.core.exceptions.ClientAuthenticationError`
+
+        Example
+
+        .. code-block:: python
+
+            items = client.check_configuration_settings(key_filter="my_key*")
+            for page in items.by_page():
+                print(page.etag)  # etag for this page
+        """
+        if isinstance(accept_datetime, datetime):
+            accept_datetime = str(accept_datetime)
+        select = fields
+        if select:
+            select = ["locked" if x == "read_only" else x for x in select]
+        tags = tags_filter
+        command = functools.partial(self._impl.check_key_values_in_one_page, **kwargs)  # type: ignore[attr-defined]
+        return ConfigurationSettingPaged(
+            command,
+            key=key_filter,
+            label=label_filter,
+            accept_datetime=accept_datetime,
+            select=select,
+            tags=tags,
+            page_iterator_class=ConfigurationSettingPropertiesPaged,
+        )
+
     @distributed_trace
     def get_configuration_setting(
         self,