fix inheritance for urllib.response.addbase (#11152)

Author: tungol

stdlib/urllib/response.pyi

@@ -1,39 +1,23 @@
 import sys
+import tempfile
 from _typeshed import ReadableBuffer
 from collections.abc import Callable, Iterable
 from email.message import Message
 from types import TracebackType
-from typing import IO, Any, BinaryIO
-from typing_extensions import Self
+from typing import IO, Any
 
 __all__ = ["addbase", "addclosehook", "addinfo", "addinfourl"]
 
-class addbase(BinaryIO):
+class addbase(tempfile._TemporaryFileWrapper[bytes]):
     fp: IO[bytes]
     def __init__(self, fp: IO[bytes]) -> None: ...
-    def __enter__(self) -> Self: ...
     def __exit__(
         self, type: type[BaseException] | None, value: BaseException | None, traceback: TracebackType | None
     ) -> None: ...
-    def __iter__(self) -> Self: ...
-    def __next__(self) -> bytes: ...
-    def close(self) -> None: ...
     # These methods don't actually exist, but the class inherits at runtime from
     # tempfile._TemporaryFileWrapper, which uses __getattr__ to delegate to the
     # underlying file object. To satisfy the BinaryIO interface, we pretend that this
     # class has these additional methods.
-    def fileno(self) -> int: ...
-    def flush(self) -> None: ...
-    def isatty(self) -> bool: ...
-    def read(self, n: int = ...) -> bytes: ...
-    def readable(self) -> bool: ...
-    def readline(self, limit: int = ...) -> bytes: ...
-    def readlines(self, hint: int = ...) -> list[bytes]: ...
-    def seek(self, offset: int, whence: int = ...) -> int: ...
-    def seekable(self) -> bool: ...
-    def tell(self) -> int: ...
-    def truncate(self, size: int | None = ...) -> int: ...
-    def writable(self) -> bool: ...
     def write(self, s: ReadableBuffer) -> int: ...
     def writelines(self, lines: Iterable[ReadableBuffer]) -> None: ...