Implement Matrix->Telegram typing notifications

mautrix_telegram/user.py

@@ -22,6 +22,7 @@ import re
 from telethon.tl.types import *
 from telethon.tl.types.contacts import ContactsNotModified
 from telethon.tl.functions.contacts import GetContactsRequest, SearchRequest
+from telethon.tl.functions.messages import SetTypingRequest
 from mautrix_appservice import MatrixRequestError
 
 from .db import User as DBUser, Contact as DBContact
@@ -203,6 +204,10 @@ class User(AbstractUser):
         if changed:
             self.save()
 
+    def set_typing(self, peer, typing=True, action=SendMessageTypingAction):
+        return self.client(
+            SetTypingRequest(peer, action() if typing else SendMessageCancelAction()))
+
     async def log_out(self):
         for _, portal in self.portals.items():
             if portal.has_bot: