Azure · msyyc · Mar 19, 2026 · Mar 19, 2026 · Mar 19, 2026 · Mar 19, 2026
@@ -0,0 +1,8 @@
+---
+changeKind: internal
+packages:
+  - "@autorest/python"
+  - "@azure-tools/typespec-python"
+---
+
+Add mock API test case for the `AlternateInitialVerb` POST pagination scenario where the initial request uses POST with a filter body and subsequent next link requests use GET.
@@ -0,0 +1,8 @@
+---
+changeKind: internal
+packages:
+  - "@autorest/python"
+  - "@azure-tools/typespec-python"
+---
+
+Skip 8 failing client structure test cases pending `@azure-tools/typespec-client-generator-core` upgrade to 0.67.0
@@ -29,7 +29,7 @@
   },
   "homepage": "https://github.com/Azure/autorest.python/blob/main/README.md",
   "dependencies": {
-    "@typespec/http-client-python": "https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNjAyMDkyMi9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.28.0.tgz",
+    "@typespec/http-client-python": "https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNjAzMjIxMi9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.28.0.tgz",
     "@autorest/system-requirements": "~1.0.2",
     "fs-extra": "~11.2.0",
     "tsx": "^4.21.0"

@@ -60,14 +60,14 @@
     "@azure-tools/typespec-azure-core": ">=0.66.0 <1.0.0",
     "@azure-tools/typespec-azure-resource-manager": ">=0.66.0 <1.0.0",
     "@azure-tools/typespec-autorest": ">=0.66.0 <1.0.0",
-    "@azure-tools/typespec-azure-rulesets": ">=0.65.1 <1.0.0",
-    "@azure-tools/typespec-client-generator-core": ">=0.66.1 <1.0.0"
+    "@azure-tools/typespec-azure-rulesets": ">=0.66.0 <1.0.0",
+    "@azure-tools/typespec-client-generator-core": ">=0.66.2 <1.0.0"
   },
   "dependencies": {
     "js-yaml": "~4.1.0",
     "semver": "~7.6.2",
     "tsx": "^4.21.0",
-    "@typespec/http-client-python": "https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNjAyMDkyMi9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.28.0.tgz",
+    "@typespec/http-client-python": "https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNjAzMjIxMi9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.28.0.tgz",
     "fs-extra": "~11.2.0"
   },
   "devDependencies": {
@@ -83,11 +83,11 @@
     "@typespec/xml": "~0.80.0",
     "@azure-tools/typespec-azure-resource-manager": "~0.66.0",
     "@azure-tools/typespec-azure-core": "~0.66.0",
-    "@azure-tools/typespec-azure-rulesets": "~0.65.1",
+    "@azure-tools/typespec-azure-rulesets": "~0.66.0",
     "@azure-tools/typespec-autorest": "~0.66.0",
-    "@azure-tools/typespec-client-generator-core": "~0.66.1",
-    "@azure-tools/azure-http-specs": "0.1.0-alpha.39-dev.3",
-    "@typespec/http-specs": "0.1.0-alpha.35-dev.1",
+    "@azure-tools/typespec-client-generator-core": "~0.66.2",
+    "@azure-tools/azure-http-specs": "0.1.0-alpha.39-dev.4",
+    "@typespec/http-specs": "0.1.0-alpha.35-dev.4",
     "@typespec/spector": "0.1.0-alpha.24",
     "@typespec/spec-api": "0.1.0-alpha.14-dev.1",
     "@types/js-yaml": "~4.0.5",

@@ -1,6 +1,7 @@
 {
     "CrossLanguagePackageId": "Payload.Pageable",
     "CrossLanguageDefinitionId": {
+        "payload.pageable.serverdrivenpagination.alternateinitialverb.models.Filter": "Payload.Pageable.ServerDrivenPagination.AlternateInitialVerb.Filter",
         "payload.pageable.serverdrivenpagination.models.NestedLinkResponseNestedItems": "Payload.Pageable.ServerDrivenPagination.nestedLink.Response.nestedItems.anonymous",
         "payload.pageable.serverdrivenpagination.models.NestedLinkResponseNestedNext": "Payload.Pageable.ServerDrivenPagination.nestedLink.Response.nestedNext.anonymous",
         "payload.pageable.models.Pet": "Payload.Pageable.Pet",

@@ -39,6 +39,17 @@ def test_server_driven_pagination_nested_link(self, pageable_endpoint):
         # please add some check logic here by yourself
         # ...
 
+    @PageablePreparer()
+    @recorded_by_proxy
+    def test_server_driven_pagination_alternate_initial_verb_post(self, pageable_endpoint):
+        client = self.create_client(endpoint=pageable_endpoint)
+        response = client.server_driven_pagination.alternate_initial_verb.post(
+            body={"filter": "str"},
+        )
+        result = [r for r in response]
+        # please add some check logic here by yourself
+        # ...
+
     @PageablePreparer()
     @recorded_by_proxy
     def test_server_driven_pagination_continuation_token_request_query_response_body(self, pageable_endpoint):

@@ -40,6 +40,17 @@ async def test_server_driven_pagination_nested_link(self, pageable_endpoint):
         # please add some check logic here by yourself
         # ...
 
+    @PageablePreparer()
+    @recorded_by_proxy_async
+    async def test_server_driven_pagination_alternate_initial_verb_post(self, pageable_endpoint):
+        client = self.create_async_client(endpoint=pageable_endpoint)
+        response = client.server_driven_pagination.alternate_initial_verb.post(
+            body={"filter": "str"},
+        )
+        result = [r async for r in response]
+        # please add some check logic here by yourself
+        # ...
+
     @PageablePreparer()
     @recorded_by_proxy_async
     async def test_server_driven_pagination_continuation_token_request_query_response_body(self, pageable_endpoint):

@@ -26,6 +26,7 @@
 from ...._utils.model_base import _deserialize
 from ...._utils.serialization import Deserializer, Serializer
 from ....aio._configuration import PageableClientConfiguration
+from ...alternateinitialverb.aio.operations._operations import ServerDrivenPaginationAlternateInitialVerbOperations
 from ...continuationtoken.aio.operations._operations import ServerDrivenPaginationContinuationTokenOperations
 from ...operations._operations import (
     build_server_driven_pagination_link_request,
@@ -54,6 +55,9 @@ def __init__(self, *args, **kwargs) -> None:
         self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
 
+        self.alternate_initial_verb = ServerDrivenPaginationAlternateInitialVerbOperations(
+            self._client, self._config, self._serialize, self._deserialize
+        )
         self.continuation_token = ServerDrivenPaginationContinuationTokenOperations(
             self._client, self._config, self._serialize, self._deserialize
         )

@@ -0,0 +1 @@
+__path__ = __import__("pkgutil").extend_path(__path__, __name__)  # type: ignore
@@ -0,0 +1 @@
+__path__ = __import__("pkgutil").extend_path(__path__, __name__)  # type: ignore
@@ -0,0 +1,22 @@
+# coding=utf-8
+# --------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# Code generated by Microsoft (R) Python Code Generator.
+# Changes may cause incorrect behavior and will be lost if the code is regenerated.
+# --------------------------------------------------------------------------
+# pylint: disable=wrong-import-position
+
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from ._patch import *  # pylint: disable=unused-wildcard-import
+
+
+from ._patch import __all__ as _patch_all
+from ._patch import *
+from ._patch import patch_sdk as _patch_sdk
+
+__all__ = []
+__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
+_patch_sdk()
@@ -0,0 +1,188 @@
+# coding=utf-8
+# --------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# Code generated by Microsoft (R) Python Code Generator.
+# Changes may cause incorrect behavior and will be lost if the code is regenerated.
+# --------------------------------------------------------------------------
+from collections.abc import MutableMapping
+from io import IOBase
+import json
+from typing import Any, Callable, IO, Optional, TypeVar, Union, overload
+
+from azure.core import AsyncPipelineClient
+from azure.core.async_paging import AsyncItemPaged, AsyncList
+from azure.core.exceptions import (
+    ClientAuthenticationError,
+    HttpResponseError,
+    ResourceExistsError,
+    ResourceNotFoundError,
+    ResourceNotModifiedError,
+    map_error,
+)
+from azure.core.pipeline import PipelineResponse
+from azure.core.rest import AsyncHttpResponse, HttpRequest
+from azure.core.tracing.decorator import distributed_trace
+from azure.core.utils import case_insensitive_dict
+
+from ... import models as _models2
+from ..... import models as _models4
+from ....._utils.model_base import SdkJSONEncoder, _deserialize
+from ....._utils.serialization import Deserializer, Serializer
+from .....aio._configuration import PageableClientConfiguration
+from ...operations._operations import build_server_driven_pagination_alternate_initial_verb_post_request
+
+JSON = MutableMapping[str, Any]
+T = TypeVar("T")
+ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, dict[str, Any]], Any]]
+
+
+class ServerDrivenPaginationAlternateInitialVerbOperations:  # pylint: disable=name-too-long
+    """
+    .. warning::
+        **DO NOT** instantiate this class directly.
+
+        Instead, you should access the following operations through
+        :class:`~payload.pageable.aio.PageableClient`'s
+        :attr:`alternate_initial_verb` attribute.
+    """
+
+    def __init__(self, *args, **kwargs) -> None:
+        input_args = list(args)
+        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
+        self._config: PageableClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
+        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
+        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+
+    @overload
+    def post(
+        self, body: _models2.Filter, *, content_type: str = "application/json", **kwargs: Any
+    ) -> AsyncItemPaged["_models4.Pet"]:
+        """post.
+
+        :param body: Required.
+        :type body: ~payload.pageable.serverdrivenpagination.alternateinitialverb.models.Filter
+        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
+         Default value is "application/json".
+        :paramtype content_type: str
+        :return: An iterator like instance of Pet
+        :rtype: ~azure.core.async_paging.AsyncItemPaged[~payload.pageable.models.Pet]
+        :raises ~azure.core.exceptions.HttpResponseError:
+        """
+
+    @overload
+    def post(
+        self, body: JSON, *, content_type: str = "application/json", **kwargs: Any
+    ) -> AsyncItemPaged["_models4.Pet"]:
+        """post.
+
+        :param body: Required.
+        :type body: JSON
+        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
+         Default value is "application/json".
+        :paramtype content_type: str
+        :return: An iterator like instance of Pet
+        :rtype: ~azure.core.async_paging.AsyncItemPaged[~payload.pageable.models.Pet]
+        :raises ~azure.core.exceptions.HttpResponseError:
+        """
+
+    @overload
+    def post(
+        self, body: IO[bytes], *, content_type: str = "application/json", **kwargs: Any
+    ) -> AsyncItemPaged["_models4.Pet"]:
+        """post.
+
+        :param body: Required.
+        :type body: IO[bytes]
+        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
+         Default value is "application/json".
+        :paramtype content_type: str
+        :return: An iterator like instance of Pet
+        :rtype: ~azure.core.async_paging.AsyncItemPaged[~payload.pageable.models.Pet]
+        :raises ~azure.core.exceptions.HttpResponseError:
+        """
+
+    @distributed_trace
+    def post(self, body: Union[_models2.Filter, JSON, IO[bytes]], **kwargs: Any) -> AsyncItemPaged["_models4.Pet"]:
+        """post.
+
+        :param body: Is one of the following types: Filter, JSON, IO[bytes] Required.
+        :type body: ~payload.pageable.serverdrivenpagination.alternateinitialverb.models.Filter or JSON
+         or IO[bytes]
+        :return: An iterator like instance of Pet
+        :rtype: ~azure.core.async_paging.AsyncItemPaged[~payload.pageable.models.Pet]
+        :raises ~azure.core.exceptions.HttpResponseError:
+        """
+        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
+        _params = kwargs.pop("params", {}) or {}
+
+        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
+        cls: ClsType[list[_models4.Pet]] = kwargs.pop("cls", None)
+
+        error_map: MutableMapping = {
+            401: ClientAuthenticationError,
+            404: ResourceNotFoundError,
+            409: ResourceExistsError,
+            304: ResourceNotModifiedError,
+        }
+        error_map.update(kwargs.pop("error_map", {}) or {})
+        content_type = content_type or "application/json"
+        _content = None
+        if isinstance(body, (IOBase, bytes)):
+            _content = body
+        else:
+            _content = json.dumps(body, cls=SdkJSONEncoder, exclude_readonly=True)  # type: ignore
+
+        def prepare_request(next_link=None):
+            if not next_link:
+
+                _request = build_server_driven_pagination_alternate_initial_verb_post_request(
+                    content_type=content_type,
+                    content=_content,
+                    headers=_headers,
+                    params=_params,
+                )
+                path_format_arguments = {
+                    "endpoint": self._serialize.url(
+                        "self._config.endpoint", self._config.endpoint, "str", skip_quote=True
+                    ),
+                }
+                _request.url = self._client.format_url(_request.url, **path_format_arguments)
+
+            else:
+                _request = HttpRequest("GET", next_link)
+                path_format_arguments = {
+                    "endpoint": self._serialize.url(
+                        "self._config.endpoint", self._config.endpoint, "str", skip_quote=True
+                    ),
+                }
+                _request.url = self._client.format_url(_request.url, **path_format_arguments)
+
+            return _request
+
+        async def extract_data(pipeline_response):
+            deserialized = pipeline_response.http_response.json()
+            list_of_elem = _deserialize(
+                list[_models4.Pet],
+                deserialized.get("pets", []),
+            )
+            if cls:
+                list_of_elem = cls(list_of_elem)  # type: ignore
+            return deserialized.get("next") or None, AsyncList(list_of_elem)
+
+        async def get_next(next_link=None):
+            _request = prepare_request(next_link)
+
+            _stream = False
+            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
+                _request, stream=_stream, **kwargs
+            )
+            response = pipeline_response.http_response
+
+            if response.status_code not in [200]:
+                map_error(status_code=response.status_code, response=response, error_map=error_map)
+                raise HttpResponseError(response=response)
+
+            return pipeline_response
+
+        return AsyncItemPaged(get_next, extract_data)
@@ -0,0 +1,21 @@
+# coding=utf-8
+# --------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# --------------------------------------------------------------------------
+"""Customize generated code here.
+
+Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
+"""
+
+
+__all__: list[str] = []  # Add all objects you want publicly available to users at this package level
+
+
+def patch_sdk():
+    """Do not remove from this file.
+
+    `patch_sdk` is a last resort escape hatch that allows you to do customizations
+    you can't accomplish using the techniques described in
+    https://aka.ms/azsdk/python/dpcodegen/python/customize
+    """
@@ -0,0 +1,27 @@
+# coding=utf-8
+# --------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# Code generated by Microsoft (R) Python Code Generator.
+# Changes may cause incorrect behavior and will be lost if the code is regenerated.
+# --------------------------------------------------------------------------
+# pylint: disable=wrong-import-position
+
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from ._patch import *  # pylint: disable=unused-wildcard-import
+
+
+from ._models import (  # type: ignore
+    Filter,
+)
+from ._patch import __all__ as _patch_all
+from ._patch import *
+from ._patch import patch_sdk as _patch_sdk
+
+__all__ = [
+    "Filter",
+]
+__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
+_patch_sdk()
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		__path__ = __import__("pkgutil").extend_path(__path__, __name__) # type: ignore