async def _send_typing(self, request: Request, stack: Stack):
t = stack.get_layer(lyr.Typing)<EOL>if t.active:<EOL><INDENT>await self.call(<EOL>'<STR_LIT>',<EOL>chat_id=request.message.get_chat_id(),<EOL>action='<STR_LIT>',<EOL>)<EOL><DEDENT>
In telegram, the typing stops when the message is received. Thus, there
is no "typing stops" messages to send. The API is only called when
typing must start.