fix

Author: kristjanvalur

redis/asyncio/connection.py

@@ -396,7 +396,7 @@ def _close_socket(self):
                     # exit anyway.
                     pass
 
-        c def _send_ping(self):
+    async def _send_ping(self):
         """Send PING, expect PONG in return"""
         await self.send_command("PING", check_health=False)
         if str_if_bytes(await self.read_response()) != "PONG":