async def _send_plain_text ( self , request : Request , stack : Stack ) : await self . _send_text ( request , stack , None )
python 3 send text message
Sends plain text using _send_text () .
async def _send_plain_text(self, request: Request, stack: Stack):
        """
        Sends plain text using `_send_text()`.
        """

        await self._send_text(request, stack, None)