Add all plugin

stdplugins/all.py

@@ -0,0 +1,13 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+from telethon import events
+
+@borg.on(events.NewMessage(pattern=r".all", outgoing=True))
+async def _(event):
+    await event.delete()
+    mentions = "@all"
+    async for x in borg.iter_participants(await event.input_chat, 100):
+        mentions += f"[\u2063](tg://user?id={x.id})"
+    await event.respond(mentions)