quick fix 2

Lib/site-packages/discord/context_managers.py

@@ -0,0 +1,92 @@
+"""
+The MIT License (MIT)
+
+Copyright (c) 2015-present Rapptz
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+"""
+
+from __future__ import annotations
+
+import asyncio
+from typing import TYPE_CHECKING, Generator, Optional, Type, TypeVar
+
+if TYPE_CHECKING:
+    from .abc import Messageable, MessageableChannel
+
+    from types import TracebackType
+
+    BE = TypeVar('BE', bound=BaseException)
+
+# fmt: off
+__all__ = (
+    'Typing',
+)
+# fmt: on
+
+
+def _typing_done_callback(fut: asyncio.Future) -> None:
+    # just retrieve any exception and call it a day
+    try:
+        fut.exception()
+    except (asyncio.CancelledError, Exception):
+        pass
+
+
+class Typing:
+    def __init__(self, messageable: Messageable) -> None:
+        self.loop: asyncio.AbstractEventLoop = messageable._state.loop
+        self.messageable: Messageable = messageable
+        self.channel: Optional[MessageableChannel] = None
+
+    async def _get_channel(self) -> MessageableChannel:
+        if self.channel:
+            return self.channel
+
+        self.channel = channel = await self.messageable._get_channel()
+        return channel
+
+    async def wrapped_typer(self) -> None:
+        channel = await self._get_channel()
+        await channel._state.http.send_typing(channel.id)
+
+    def __await__(self) -> Generator[None, None, None]:
+        return self.wrapped_typer().__await__()
+
+    async def do_typing(self) -> None:
+        channel = await self._get_channel()
+        typing = channel._state.http.send_typing
+
+        while True:
+            await asyncio.sleep(5)
+            await typing(channel.id)
+
+    async def __aenter__(self) -> None:
+        channel = await self._get_channel()
+        await channel._state.http.send_typing(channel.id)
+        self.task: asyncio.Task[None] = self.loop.create_task(self.do_typing())
+        self.task.add_done_callback(_typing_done_callback)
+
+    async def __aexit__(
+        self,
+        exc_type: Optional[Type[BE]],
+        exc: Optional[BE],
+        traceback: Optional[TracebackType],
+    ) -> None:
+        self.task.cancel()