Added back download_blob overloads to fix API Views (#42769)

Author: weirongw23-msft

sdk/storage/azure-storage-blob/azure/storage/blob/_blob_client.py

@@ -9,7 +9,7 @@
 from datetime import datetime
 from functools import partial
 from typing import (
-    Any, AnyStr, cast, Dict, IO, Iterable, List, Optional, Tuple, Union,
+    Any, AnyStr, cast, Dict, IO, Iterable, List, Optional, overload, Tuple, Union,
     TYPE_CHECKING
 )
 from typing_extensions import Self
@@ -633,6 +633,26 @@ def upload_blob(
             return upload_page_blob(**options)
         return upload_append_blob(**options)
 
+    @overload
+    def download_blob(
+        self, offset: Optional[int] = None,
+        length: Optional[int] = None,
+        *,
+        encoding: str,
+        **kwargs: Any
+    ) -> StorageStreamDownloader[str]:
+        ...
+
+    @overload
+    def download_blob(
+        self, offset: Optional[int] = None,
+        length: Optional[int] = None,
+        *,
+        encoding: None = None,
+        **kwargs: Any
+    ) -> StorageStreamDownloader[bytes]:
+        ...
+
     @distributed_trace
     def download_blob(
         self, offset: Optional[int] = None,

sdk/storage/azure-storage-blob/azure/storage/blob/aio/_blob_client_async.py

@@ -10,7 +10,7 @@
 from functools import partial
 from typing import (
     Any, AnyStr, AsyncIterable, Callable, cast, Dict, IO,
-    Iterable, List, Optional, Tuple, Union,
+    Iterable, List, Optional, overload, Tuple, Union,
     TYPE_CHECKING
 )
 from typing_extensions import Self
@@ -646,6 +646,26 @@ async def upload_blob(
             return cast(Dict[str, Any], await upload_page_blob(**options))
         return cast(Dict[str, Any], await upload_append_blob(**options))
 
+    @overload
+    async def download_blob(
+        self, offset: Optional[int] = None,
+        length: Optional[int] = None,
+        *,
+        encoding: str,
+        **kwargs: Any
+    ) -> StorageStreamDownloader[str]:
+        ...
+
+    @overload
+    async def download_blob(
+        self, offset: Optional[int] = None,
+        length: Optional[int] = None,
+        *,
+        encoding: None = None,
+        **kwargs: Any
+    ) -> StorageStreamDownloader[bytes]:
+        ...
+
     @distributed_trace_async
     async def download_blob(
         self, offset: Optional[int] = None,