Added some missing type annotations in stdlib stubs. (#4418)

Co-authored-by: Eric Traut <erictr@microsoft.com>

stdlib/3/asyncio/base_futures.pyi

@@ -1,5 +1,5 @@
 import contextvars
-from typing import Callable, List, Sequence, Tuple
+from typing import Any, Callable, List, Sequence, Tuple
 from typing_extensions import Literal
 
 from . import futures
@@ -9,5 +9,5 @@ _CANCELLED: Literal["CANCELLED"]  # undocumented
 _FINISHED: Literal["FINISHED"]  # undocumented
 
 def isfuture(obj: object) -> bool: ...
-def _format_callbacks(cb: Sequence[Tuple[Callable[[futures.Future], None], contextvars.Context]]) -> str: ...  # undocumented
-def _future_repr_info(future: futures.Future) -> List[str]: ...  # undocumented
+def _format_callbacks(cb: Sequence[Tuple[Callable[[futures.Future[Any]], None], contextvars.Context]]) -> str: ...  # undocumented
+def _future_repr_info(future: futures.Future[Any]) -> List[str]: ...  # undocumented

stdlib/3/asyncio/base_subprocess.pyi

@@ -10,10 +10,10 @@ class BaseSubprocessTransport(transports.SubprocessTransport):
     _closed: bool  # undocumented
     _protocol: protocols.SubprocessProtocol  # undocumented
     _loop: events.AbstractEventLoop  # undocumented
-    _proc: Optional[subprocess.Popen]  # undocumented
+    _proc: Optional[subprocess.Popen[Any]]  # undocumented
     _pid: Optional[int]  # undocumented
     _returncode: Optional[int]  # undocumented
-    _exit_waiters: List[futures.Future]  # undocumented
+    _exit_waiters: List[futures.Future[Any]]  # undocumented
     _pending_calls: Deque[Tuple[Callable[..., Any], Tuple[Any, ...]]]  # undocumented
     _pipes: Dict[int, _File]  # undocumented
     _finished: bool  # undocumented
@@ -27,7 +27,7 @@ class BaseSubprocessTransport(transports.SubprocessTransport):
         stdout: _File,
         stderr: _File,
         bufsize: int,
-        waiter: Optional[futures.Future] = ...,
+        waiter: Optional[futures.Future[Any]] = ...,
         extra: Optional[Any] = ...,
         **kwargs: Any,
     ) -> None: ...
@@ -40,7 +40,7 @@ class BaseSubprocessTransport(transports.SubprocessTransport):
         stderr: _File,
         bufsize: int,
         **kwargs: Any,
-    ): ...  # undocumented
+    ) -> None: ...  # undocumented
     def set_protocol(self, protocol: protocols.BaseProtocol) -> None: ...
     def get_protocol(self) -> protocols.BaseProtocol: ...
     def is_closing(self) -> bool: ...
@@ -52,7 +52,7 @@ class BaseSubprocessTransport(transports.SubprocessTransport):
     def send_signal(self, signal: int) -> None: ...  # type: ignore
     def terminate(self) -> None: ...
     def kill(self) -> None: ...
-    async def _connect_pipes(self, waiter: Optional[futures.Future]) -> None: ...  # undocumented
+    async def _connect_pipes(self, waiter: Optional[futures.Future[Any]]) -> None: ...  # undocumented
     def _call(self, cb: Callable[..., Any], *data: Any) -> None: ...  # undocumented
     def _pipe_connection_lost(self, fd: int, exc: Optional[BaseException]) -> None: ...  # undocumented
     def _pipe_data_received(self, fd: int, data: bytes) -> None: ...  # undocumented

stdlib/3/asyncio/base_tasks.pyi

@@ -1,9 +1,9 @@
 from _typeshed import AnyPath
 from types import FrameType
-from typing import List, Optional
+from typing import Any, List, Optional
 
 from . import tasks
 
-def _task_repr_info(task: tasks.Task) -> List[str]: ...  # undocumented
-def _task_get_stack(task: tasks.Task, limit: Optional[int]) -> List[FrameType]: ...  # undocumented
-def _task_print_stack(task: tasks.Task, limit: Optional[int], file: AnyPath): ...  # undocumented
+def _task_repr_info(task: tasks.Task[Any]) -> List[str]: ...  # undocumented
+def _task_get_stack(task: tasks.Task[Any], limit: Optional[int]) -> List[FrameType]: ...  # undocumented
+def _task_print_stack(task: tasks.Task[Any], limit: Optional[int], file: AnyPath) -> None: ...  # undocumented

stdlib/3/asyncio/sslproto.pyi

@@ -81,7 +81,7 @@ class SSLProtocol(protocols.Protocol):
     _extra: Dict[str, Any]
     _write_backlog: Deque[Tuple[bytes, int]]
     _write_buffer_size: int
-    _waiter: futures.Future
+    _waiter: futures.Future[Any]
     _loop: events.AbstractEventLoop
     _app_transport: _SSLProtocolTransport
     _sslpipe: Optional[_SSLPipe]
@@ -100,7 +100,7 @@ class SSLProtocol(protocols.Protocol):
             loop: events.AbstractEventLoop,
             app_protocol: protocols.BaseProtocol,
             sslcontext: ssl.SSLContext,
-            waiter: futures.Future,
+            waiter: futures.Future[Any],
             server_side: bool = ...,
             server_hostname: Optional[str] = ...,
             call_connection_made: bool = ...,

stdlib/3/asyncio/staggered.pyi

@@ -5,5 +5,8 @@ from . import events
 
 if sys.version_info >= (3, 8):
     async def staggered_race(
-        coro_fns: Iterable[Callable[[], Awaitable]], delay: Optional[float], *, loop: Optional[events.AbstractEventLoop] = ...
+        coro_fns: Iterable[Callable[[], Awaitable[Any]]],
+        delay: Optional[float],
+        *,
+        loop: Optional[events.AbstractEventLoop] = ...,
     ) -> Tuple[Any, Optional[int], List[Optional[Exception]]]: ...