PEP 0492 -- Coroutines with async and await syntax. Issue #24017.
diff --git a/Lib/token.py b/Lib/token.py
index a95d9b7..5fdb222 100644
--- a/Lib/token.py
+++ b/Lib/token.py
@@ -64,8 +64,10 @@
 RARROW = 51
 ELLIPSIS = 52
 OP = 53
-ERRORTOKEN = 54
-N_TOKENS = 55
+AWAIT = 54
+ASYNC = 55
+ERRORTOKEN = 56
+N_TOKENS = 57
 NT_OFFSET = 256
 #--end constants--